You are here: Home » Tutorials Posted by modulo51

You are here: Home » Tutorials Posted by modulo51

Join Now or Log In

Forgot Password

Get Answers

Ask A Question

Get Paid

Upload Your Homework
Answer Questions
See Recent Homework
See Recent Questions

Tutorials Posted by modulo51

modulo51 from University of California, Berkeley

modulo51 from University of California, Berkeley
Rating (31): B
Questions Asked: 0
Questions Answered: 200, earned $444.89

Bounty	Earned	Category	Question	Tutorial	Date Posted
modulo51's Posted Tutorials
$0.25	$0.20	General Questions	question about this site	My experience with unregistered users & site email... ...uestions). On any site this is a good place to look first.<br><br>Way down at the bottom of the page is a link:<br><br>"Contact Us"<br><br>You c...	Nov 30, 2008 at 11:48:48PM
$17.00		Computer Science	Multiple Java Questions and Coding needed	All solutions w/ use notes & demo programs... ...et() {<br> return this.radius;<br> }<br> // get perimeter:<br> public double perimeter() {<br> return 2.0 * PI * this.radius;<br> }<br&......	Nov 30, 2008 at 1:50:21PM
$0.25		General Questions	Information Regarding the StudentofFortune Tax Form?	Purpose of W-9 form ...that do not have a social security number but have to pay US taxes get a similar number called and ITIN (individual taxpayer identification nu...	Nov 08, 2008 at 6:32:11PM
$27.00		Computer Science	Java Recursions	All 3 parts of Lab 12 & original Lab12.doc ...<br><br>As always, please contact me if yo...	Nov 02, 2008 at 7:20:03PM
$9.00		Computer Science	Java Recursions	Exercise 3; PowerIterate.java, screen shot, use notes ...Iterate {<br><br> static Scanner kb = new Scanner(System.in);<br><br> public static int intPowerIterative(int base, int exponent) {<br> int power = 1;<br&......	Nov 02, 2008 at 2:04:18PM
$9.00		Computer Science	Java Recursions	Exercise 2; Divisor.java & DivisorTest.java, screen shot ...o {<br> System.out.print("\\\\nEnter first number: ");<br> number1 = Integer.parseInt(kb.nextLine());<br> System.out.print("Enter......	Nov 02, 2008 at 1:50:51PM
$9.00		Computer Science	Java Recursions	Exercise 1; Power.java & PowerTest.java, screen shot, use notes ....out.println(<br> "Invalid exponent; must be > 0");<br> } else {<br> System.out.println(<br> ......	Nov 02, 2008 at 1:45:29PM
$2.00		Mathematics	Algorithems	Description of algorithm.. ... and the first index is 0. Thus the index ranges from 0 to n-1.<br><br>// initialize<br>maxDiff = array(1)-array(0);<br>count = 1;<br><br>/...	Nov 01, 2008 at 8:57:04PM
$1.00		Mathematics	Hi there. I am taking a test to be an e	Details to solution ...on:<br>(-2)5 + (-2)x<br>x5 + xx<br>---------------- and 'em up:<br>x*x + 5x - 2x - 10<br>or<br>x^2 + 3x - 10<br><br>This works for any kinds of......	Oct 26, 2008 at 8:23:32PM
$1.00		Mathematics	stuck!	Description of solution. ... we try to translate the sentences into equations:<br>1) to start:<br>b = 3t<br><br><br>2) after spending 1.50 betty's money is 9 times toms:<br>b-1.5 = 9(t-1.5)&......	Oct 05, 2008 at 6:06:03PM
$1.00		Mathematics	22y+16(8)=6yI know the answer is -8H	Description of how to solve... ...br>(22-6)y + 128 = 0<br>now, do the subtraction and subtract 128 from both sides:<br>16y = -128<br>now divide both sides by 16:<br>y ...	Sep 27, 2008 at 11:36:08PM
$1.00		Mathematics	22y+16(8)=6yI know the answer is -8H	Description of how to solve... ...e, has the same solution.<br><br>Start with the eqn:<br>22y + 16(8) = 6y<br>subtract 6y from both sides:<br>22y-6y + 16*8 = 0<br>factor out...	Sep 27, 2008 at 11:32:38PM
$0.75		Mathematics	show the proof for: theorem: if x and y	The basic idea for the proof... ...here c and d are non zero integers.<br><br>then<br>x/y = (a/b)/(c/d) = (ad)/(bc) <br>now, sinc...	Sep 27, 2008 at 8:38:39PM
$1.00		Mathematics	Math Week 4	Solution using Pythagorean theorem... ... = ssqrt(2) = 2sqrt(2)<br>divide by sqrt(2)<br>s = 2<br><br>and so the square is 2 units on a side.<br><br>Check<br><br...	Sep 22, 2008 at 01:04:43PM
$1.00		Mathematics	a rectangular counter 3 feet wide and 5	Solution... ... pi2.25/4 = 0.5625pi<br><br>The difference is the remaining area of the counter top:<br><br>Remaining a...	Sep 21, 2008 at 9:44:30PM
$1.00	$0.82	Mathematics	3. a) Blue Bell taxi company charges $2.	Solution... ...t c equal to 13.80 and solve for m:<br><br>c = 13.80 = 2.75 +0.65(m-5)<br>11.05 = 0.65(m-5)<br>divide by 0.65<br>11.05/0.65 = 17 = m-5<br>...	Sep 21, 2008 at 8:23:30PM
$1.00	$0.82	Mathematics	My son came home with a problem and need help	Solution... ...<br>= 88 - 5<br>= 83 deg<br><br>The angle XYZ is twice this<br>angle XYZ = 2*83 = 166 degrees<br><br>Now check:<br>See if this...	Sep 21, 2008 at 3:00:06PM
$35.00	$49.70	Computer Science	HELP!!! Please Java account project	DB 2 IT271, FileMatch.java, CreateDate.java, Use Notes ...r> * Matches resulted in updated balances. Unmatched transaction<br> * account numbers were written to the log file.<br> /<br><br>/<br> <br> * @author......	Sep 14, 2008 at 8:08:52PM
$1.00		Mathematics	Mat/116	Linear life expectancy equation ...the equation is to <br><br>Let t be time measure in years from 1991. That is,<br>t = 0 at 1991<br><br>...	Sep 07, 2008 at 10:30:14PM
$23.00	$18.86	Computer Science	What is the best C++ solution for the following attachment?	UserID.cpp, screen shot, and use notes ...br> ID[3] = ssn[3];<br> ID[4] = ssn[4];<br> ID[5] = ssn[5];<br> for( int k=0; k<ID.length(); k++ ) <br> ID[k] = toupper(ID[k]);<br> ......	Sep 07, 2008 at 7:16:24PM
$17.00		Computer Science	OOP inheritance and GUI	Question 1 only: all class files, screenshot, UMLdiagram, usenotes ...s.getCost());<br><br> return;<br> }<br>}<br>///// **************************************************<br>/<br> * File: Book.java<br> * Date:......	Sep 06, 2008 at 9:18:01PM
$1.00		Mathematics	Henry invested $12,000 in a new restaura	Solving compounding equation ... this:<br>[(1+r)^2] = 27000/12000 = 2.25<br>now, take the log of both sides (base 10 or base e will work):<br>...	Aug 31, 2008 at 1:51:11PM
$27.00	$22.13	Computer Science	Need help with c++ Solution	T-ShirtInventory.cpp, ScreenShot, & UseNotes ...<cstdlib><br>#include <iostream><br>#include <string><br>#include <iomanip><br>using namespace std;<br><br>int ROWS = 4;<br>int COLS =......	Aug 28, 2008 at 8:11:09PM
$1.00		Education	Old MacDonald has 100 chickens and goats	Algebra solution ...r of chickens (2 legs each)<br>g be the number of goats (4 legs each)<br><br>Now, the total number of animals is 100:<br>c + g = 100<br><br>and, we know the total......	Aug 28, 2008 at 1:03:34PM
$3.00		Biology	Cell -Production Growth Essay	Essay type answers... ... cells over time was measured, hence the experiment was designed to test the effect of temperature on cell growth rate.<br><br>b)<br>Flask 3 is the only one whose volume started at......	Aug 23, 2008 at 9:33:40PM
$4.50		Mathematics	III. Growth Modeled by a Radical Equation:	Part 3: Radical Growth ...ou need any...	Aug 17, 2008 at 9:46:06PM
$1.00	$0.82	Mathematics	Solve and enter in solution set form	Solution of inequality in set builder notation .../10 - (x+2)<br>multiply both sides by 10/7<br>3x+4 >= 13/7 - (10/7)(x+2)<br>3x + 4 + (10/7)x >= 13/7 - 20/7<br>(21/7)x + (10/7)x >= -7/7 - 4<br>(31/7)x >= ...	Aug 17, 2008 at 6:28:17PM
$1.00	$0.82	Mathematics	Applied Problem	Mixture problem solution ...+ 0.05(15-x) = 0.1815<br>solve this for x:<br>0.20x - 0.05x + 0.75 = 2.7<br>x(0.20-0.05) = 2.7 ...	Aug 17, 2008 at 5:09:04PM
$1.00		Computer Science	programming	Sum of squares, pseudo-code, Java, C++ code snippets ...ySquare = Integer.parseInt(kb.nextLine());<br>int sum = 0;<br>for( int k=1; k<=MySquare; k++){<br>sum = sum + k*k;<br>}<br><br>The code in C++ is almost the...	Aug 16, 2008 at 11:29:22PM
$5.00	$19.09	Computer Science	CheckPoint: Sequential and Selection Processing Control Structure	AppendixG.java, UseNotes, OutputIDE.doc ...f (sal < 1500.00) {<br> return baseTax(sal) + (sal - 0.0) * percentExcess(sal);<br> }<br> if (sal < 3000.00) {<br> return baseTax(sal)......	Aug 16, 2008 at 8:16:18PM
$27.00	$22.13	Computer Science	C++ Program needed	DeptStoreAccountUpdate,cpp, UseNotes, & Screen Shot ...gePct*prevMonthBalance;<br> if(lc < minLateCharge) return 5.00;<br> else return lc;<br> }<br> double newBalance(){ <br> ......	Aug 15, 2008 at 11:47:55PM
$9.00		Mathematics	I need help with my Algebra Assignment. twenty multiple choice questions.	Just the answers: 2 are missing due to format problems .... Just contact me and I\'ll add the solutions to those two.<...	Aug 10, 2008 at 11:39:11PM
$1.00	$0.82	Mathematics	college math	Magic square solution ...<br>17 \| 56 \| 26<br><br>Here are the steps:<br><br>row 3: get middle number<br>col 2: get top number<br>row 1: get left...	Aug 09, 2008 at 9:36:30PM
$2.00		Mathematics	5 multiple choice questions just need the answer (basic geometry)	Questions 21,22, and 23 ... is given by:<br>A = 4pir^2<br>a 7 millimeter radius sphere has and area of:<br>A = 4(3.14)7^2 <br>A = 4(3.14)49<br>A = 615.752<br>rounder this is <br>A......	Aug 09, 2008 at 01:13:20PM
$3.00	$2.46	Mathematics	vector product.	Vector algebra solutions... ...qrt(4 + 9 + 25)<br>= sqrt(38)<br>which is approximately 6.16<br><br>similarly,<br>b)<br>The length of vector D is<br>\|D\| = sqrt( (-1)^2 + (-1)^2 + (-1)^2 )<......	Aug 07, 2008 at 11:03:59PM
$5.00	$21.00	Computer Science	Payroll Program Part 1	WeeklyPay1.java & screen shot ... System.out.print("\\nEnter the employee's name: ");<br> name = in.nextLine();<br> // hourly rate:<br> System.out.print("Enter the hourly rate:......	Aug. 05, 2008 at 12:00:05AM
$3.00	$2.46	Mathematics	Geometric Growth and Compound Interest	Excel spreadsheet solution ... is:<br><br>yield = (1+i/4)^4 where i is the interest as a decimal, that is, 3% is i = 0.03<br><br>for the daily c...	Aug. 01, 2008 at 12:55:01AM
$20.00		Computer Science	Java Mortgage Calculator	MortgageCalculator.java & screen shot & use notes & sample output (IDE) ...rm of loan (years): 30<br><br>A monthly payment of $1,167.15 is required to amortize this loan.<br><br>Number Payment Interest Principle Balance<br> 1 ......	Jul. 31, 2008 at 12:51:53AM
$10.00	$6.00	Computer Science	Payroll Program 2	WeeklyPay.java, screen shot, and use notes ... break;<br> }<br> }<br> // Hours, stay in loop until a postive number is entered<br> while (true) {<br> ......	Jul. 26, 2008 at 01:18:39AM
$1.00		Mathematics	HHHHHEEEEELLLLLLPPPPPP!!!!!!!!!!!!!!!!!!11111	Graph of 6X + 2Y = 12 ...0 = 12<br>X = 2<br>this gives you the point (2,0) on the x axis<br><br...	Jul. 24, 2008 at 01:03:24AM
$0.50		Mathematics	Finite Math (212)	Here's a graph to go with the others' solution, GRAPH ONLY ... by the others.<br><br>The equilibriu...	Jul 16, 2008 at 10:58:47PM
$3.00	$2.46	Mathematics	Discrete Mathematics	Solutions ... is the natural numbers? <br>If so then the largest value of F is 3, ie, F({a,b,...	Jul. 15, 2008 at 12:28:05AM
$10.00		Computer Science	Java Questions Need Response	Account.java w/ comments & UseNotes file... ...######0.00");<br> return df.format(this.balance);<br><br> }<br>// 9) add to account:<br> public void creditAccount(double amount) {<br> ......	Jul 13, 2008 at 9:49:28PM
$10.00		Computer Science	html coding?	html file and screen shots ...tElementById("books").options[2].text = "Calculus for Dummies";<br>}<br>else if(selCat.selectedIndex==3){<br>document.getElementById("books").options[0]......	Jul. 13, 2008 at 12:41:31AM
$3.00		Computer Science	Java Code-Exam Scores	ExamScores.java w/ main() & screen shot ...core[inputCount] < 0) {<br> break;<br> } else if (score[inputCount] >= 90) {<br> numA++;<br> } else if (score[inputCou......	Jul 09, 2008 at 11:56:56PM
$10.00	$8.19	Mathematics	how to do this	Solution with description & graph ... 85<br><br>C)<br>This graph show the amount of saving that A and B have after w weeks. Where the lines cross is where they have the same amount of money. The crossing at (5,85)......	Jul 06, 2008 at 9:45:18PM
$13.00		Computer Science	Java Object Oriented Program: GUI with Buttons	Buttons.java w/ main(), screen shots of JFrame & JOptionPane ...java.awt.event.ActionListener;<br>import javax.swing.JOptionPane;<br><br>public class Buttons extends JFrame<br> implements ActionListener {<br><br> ......	Jul 05, 2008 at 11:14:13PM
$23.00		Computer Science	class	Address.java & AddressTest.java w/ main(); screenshot & use notes ...ostCode(int newPostcode) {<br> this.postCode = newPostcode;<br> }<br> /*<br> G) code a method that compares two addresses for a common <br> suburb or......	Jul 04, 2008 at 11:05:27PM
$5.00		Computer Science	Pythagorean Mehtod Mush	Pythagorean.java with 2 methods and main() for user input & test ... c * c == a * a) {<br> return true;<br> } else if (c * c + a * a == b * b) {<br> return true;<br> } else {<br> return......	Jul. 02, 2008 at 12:06:39AM
$5.00		Mathematics	Finite Math	Binomial distribution problems solved... ...rs of the set of possibilties. Each has the same probability: 1/8<br><br>a) Getting all 3 wrong can only happen 1 way:<br>P(all 3 wrong ) = 1/8<br><br>b) Getting......	Jul 01, 2008 at 10:51:54PM
$4.00		Computer Science	Need help to modify payroll program.	Payroll2.java with requested modifications & screen shot ... Double hourly_wage;<br> while (true) {<br> System.out.print("Hourly Wage: ");<br> input = in.readLine();<br> ......	Jun 29, 2008 at 11:56:02PM
$0.50	$19.27	Computer Science	Java Programmer's SourceBook	Modifications to code for agreement ... double parkingReimbursement = numDays * PARKING;<br> parkingReimbursement = <br> Math.min(<br> parkingFees,parkingReimbursement);<......	Jun 29, 2008 at 10:04:57PM
$8.00		Computer Science	Program that will calculate weekly transportation cost	GasCalc.java, w/ main(), & screen shots ...cle\\\\\'s estimated miles-per-gallon? ");<br> double milesPerGallon =<br> Double.parseDouble(keyboard.nextLine());<br> // get cost of a gallon of......	Jun 29, 2008 at 9:06:34PM
$19.00		Computer Science	Bank account class	BankAccount.java, Test.java with main(), and screen shot ...c class BankAccount {<br><br> private String name;<br> private double balance = 0.0;<br> private double interestRate = 0.05;<br> private double serviceFee =......	Jun. 29, 2008 at 12:13:06AM
$0.50	$19.27	Computer Science	Java Programmer's SourceBook	Screen shots to go with my solution... ...w to get to the Windows Paint program:<br>Start>Program>Accessories>Paint<br>...	Jun 28, 2008 at 9:50:04PM
$23.00	$19.27	Computer Science	Java Programmer's SourceBook	TravelExpenses.java, following pseudocode, uses single JFrame, no JOptionPane ...w JButton("Click to reset all fields");<br> // Add an action listener to the button.<br> resetButton.addActionListener(new ResetButtonListener());<br> ......	Jun 28, 2008 at 8:35:26PM
$23.00	$18.86	Computer Science	Basic Java help	Java files, console outputs, and useage notes, all specs satisfied. ... return;<br> }<br>}<br>// ****<br>/<br> * File: Driver.java<br> * Date: June 21, 2008<br> * File contains main() to be used with SavingsAccount.ja......	Jun 21, 2008 at 10:07:12PM
$3.00		Mathematics	Baye's Formula and Tree diagrams	Part 1: descriptive solution only... ...<br>25%: 280/2800 = 0.10<br><br>now multiply each of these by the default rate:<br><br>5% & default = 0.450.05 = 0.0225<br>10% & default = 0.250.03 = 0.0075...	Jun 08, 2008 at 9:49:26PM
$2.00		Chemistry	science help!	Solutions to metric problems.... ...1 meter = 100 centimeters<br>1 centiliter = 1/100 of a liter (= 0.01 liter)<br><br>5H(sub 2) is 5 hydrogen molecules, a hydrogen molecule is<br>2 hydrogen atoms, or H(sub 2)<......	Jun 08, 2008 at 9:23:58PM
$4.50	$3.69	Computer Science	Three Arrays	ThreeArrays.java w/ extend(), main(), and methods to sort & display results ... Arrays.sort(twoArray);<br> System.out.println(<br> "\\nQuantity Array, sorted:");<br> for (int k = 0; k < two.size(); k++) {<br&g......	Jun 08, 2008 at 2:56:54PM
$7.00		Mathematics	College Algebra- Unit 4 Questions	Answers to all 9 algebra problems... ...ast two equations<br><br>8)<br>perpendicular<br><br>9)<br>first system <=> substi...	Jun 08, 2008 at 2:07:36PM
$13.00		Computer Science	Java: File Input and Output; Inheritance and Polymorphism	JavaIO.java w/ methods for write, read, display of random numbers and summary stats ...dFillArray()");<br> try {<br> System.out.println("Opening for read, file: " + FileName);<br> int[] local = new int[size];<br> ......	Jun 07, 2008 at 10:39:17PM
$5.00		Computer Science	Repetition Statements	Cubing.java w/ cubeFor, cubeDoWhile, and main methods ...print the cubes of integers<br> * from 1 to 10, inclusive<br> */<br><br>public class Cubing {<br><br> static public void cubeFor() {<br> int cube;&l......	Jun 06, 2008 at 11:09:57PM
$10.00		Mathematics	College Algebra- Unit 3 Project Questions	Correct answers to 10 questions... ...nswers. <br>The correct tables should be:<br><br>0 \| 1 \| 2 \| 3<br>-4 \| -3 \| -2 \| -...	Jun 01, 2008 at 3:12:31PM
$9.00		Mathematics	Algebra MC	Solutions to algebra problems... ...as probably choice 4, piecewise functions. (I used calling plans as an example when I taught college algebra)<br><br>8)<br>choice 4<br><br>9)<br>choice 3<br>......	Jun. 01, 2008 at 12:16:50AM
$9.00	$14.76	Computer Science	Arrays, Sorting and Searching	Temperatures.java class file w/ main, input menus for all methods. ...tTemperature Array Program");<br> Temperatures TempObj = new Temperatures();<br> TempObj.initTemp();<br> while (true) {<br> String choice;&......	May. 31, 2008 at 12:22:11AM
$7.00		Mathematics	Keith's answer	Algebra problems solved ...ide by 2:<br>x = -25/2<br><br>3.) <br>(x -2)/5 - 3/2 = (x + 1)/10<br>multiply both sides by 10:<br>2(x-2) - 10(3/2) = x + 1<br>distribut...	May 26, 2008 at 2:11:11PM
$3.00		Mathematics	Keith's answer	Algebra word problem translated to an equation ... on the uploaded page.<br><br>Pleas...	May 26, 2008 at 1:57:48PM
$3.00		Computer Science	Java 3	Just the java file: can't upload class file ...o meters.<br> */<br><br>import javax.swing.JOptionPane;<br><br>public class TemperatureLengthConversionDemo {<br><br> static void promptFahrtoC() {<br&g......	May 25, 2008 at 8:02:38PM
$10.00	$8.19	Computer Science	LibraryItem class	LibraryItem.java & LibraryItemTest.java w/ all constructors demonstrated. ...structAllItems();<br> showItems(A);<br><br> LibraryItem B = new LibraryItem("Joy of Cooking",<br> "Rombauer & Becker");<br&g......	May 25, 2008 at 5:40:24PM
$10.00		Computer Science	JAVA PROGRAMME	Product.java & Kilimanjaro.java w/ menu for modifying inventory ...ic static void sellProduct() {<br> while (true) {<br> System.out.println("\\\\tSell Product");<br> System.out.print(<br> ......	May 23, 2008 at 2:24:44PM
$9.00		Computer Science	Java small coding in 2 class: Triangle and TestTriangle	Triangle.java; TriangleTest.java w/ all constructors and methods tested ...Length() {<br> Triangle D = new Triangle();<br> System.out.println(<br> "\\nNo argument constructor");<br> System.out.println(&quo......	May 22, 2008 at 10:44:45PM
$2.00		Mathematics	Algebra	Solutions to questions... ...3) = m<br>13 = m<br><br>3. 3(x-0.87)-2x=4.98<br>distribute:<br>3x - 3(0.87) - 2x = 4.98<br>collect x on one side:<br>1x = 4.98 + 3(0.87)<br>x = 4.98 +......	May 18, 2008 at 10:10:27PM
$7.00		Mathematics	10 More College Algebra questions	Solutions to questions... ...ou need any help with this solution. ...	May 18, 2008 at 1:43:44PM
$1.00		Mathematics	factoring	Factoring a quadratic... ...0 => OK<br>6(-7)^2 + 42(-7) ?= 0<br>649 - 294 ?= 0<br>294 - 294 ?= 0<br>0 ?=...	May 18, 2008 at 1:24:16PM
$9.00		Mathematics	Basic Math Help	Solutions to math problems... ...>absolute value is just the positive value<br>\|-14\| = 14<br><br>5) Add:<br>-4/5 + (-3/4) <br>need to convert to common denominator:<br>-16/20 - 15/20<br>=......	May 16, 2008 at 7:40:14PM
$28.00		Computer Science	Classes in Java PLEASE HELP	Package.java & PackageDemo.java w/ main ...<br> */<br>public class PackageDemo {<br><br> public static final int MAX_SIZE = 20; // max items in inventory<br> static Scanner kb = new Scanner(System.in);<br......	May. 14, 2008 at 12:19:46AM
$2.00		Mathematics	Ratio and Proportion	Solution of linear word problems... ...convert to hours and minutes:<br>135/55 = 27/11 * 60 min/hr = 2 hours 27 minutes (approx)<br><br>Third question:<br>We have to find out which ingredient is the one that limits......	May 12, 2008 at 9:55:38PM
$1.00		Mathematics	probibility	Getting 4 heads in 4 tosses... ...osses:<br>P(2 heads) = (1/2)*(1/2) = 1/4<br><br>3 tosses:<br>P(3 ...	May 11, 2008 at 7:15:07PM
$8.00	$6.56	Computer Science	Grade book array	GradeBook.java & GradeBookDemo.java w/ demo case ...ic void setName(int k, String s) {<br> name[k] = s;<br> }<br>// get the name of student k<br> public String getName(int k) {<br> return name[k];<br......	May 11, 2008 at 3:18:28PM
$1.00		Mathematics	Solve a Quadradic equation	Solution using the quadratic formula ...n the answer but some teachers want the decimal:<br><br>one solution is<br>x = -1/3 + 4.69/3 = 1.23<br><br>the other is:<br>x = -1/3 - 4.69/3 = -1.90<br><b......	May 10, 2008 at 9:44:43PM
$10.00	$8.19	Computer Science	2d array class	TwoDArrayOperations & TwoDArrayOperationsDemo w/ test cases ...int A[][]) {<br> int total = 0;<br> for (int row = 0; row < A.length; row++) {<br> for (int col = 0; col < A[row].length; col++) {<br> ......	May 10, 2008 at 02:44:49PM
$0.50	$0.41	Mathematics	Find the slope	Finding the slope... ...e<br>b is the y intercept<br><br>and so for your equation,<br>y...	May. 09, 2008 at 12:40:32AM
$0.75	$0.61	Mathematics	Solution by elmination	Solution of two linear equations by elimination... ... either eqn:<br>56 - 7s = -5<br>35 = 7s<br>5 = s<br><br>Check:<br>56 - 7*5 =? -5<br>3...	May 08, 2008 at 10:38:45PM
$0.75	$1.22	Mathematics	Algebra 1b: Train A and Train B	Time trains catch up and distance travelled, and checked... ...nits are correct)<br>solve this to t:<br>80t = 84t - 42<br>42 = 4t<br>10.5 = t (hours)<br><br>so, add 10.5 hours to 10:20 and you get:...	May 08, 2008 at 10:00:22PM
$7.00		Computer Science	Simple Java Program	TestScores.java, Scores.java with 3 test cases... ...nt constructor<br><br>// calculate average:<br> public double getAve() throws IllegalArgumentException {<br> try {<br> ave = 0;<br> ......	May 07, 2008 at 1:24:14PM
$5.00		Computer Science	Java Programs	Program 1: Convert Fahrenheit to Celsius ...SoF<br> */<br><br>public class CentigradeDemo {<br><br>// Converts fahrenheit to celsius<br>public static double centigrade( double F){<br> return ((F-32.)......	May 05, 2008 at 9:58:31PM
$5.00	$4.09	Mathematics	Need Fast!!	Solution to compounding problem... ... factor of (1+0.05). So, over 18 years, the account would grow by a factor of <br>(1+0.05)...	May 03, 2008 at 10:50:58PM
$1.00		Physics	K.V.2008	Mass of planet given orbital period, radius... ...<br><br>applying equation:<br>(care must be taken to use the correct units. If you examine the units of <br>G, you'll see that the proper units are meter, kg, sec)<br>&l......	Apr 29, 2008 at 11:22:40PM
$10.00	$8.19	Mathematics	finding an exponential growth function. Use formula provided	Exponential growth of world and US population... ...6,800<br>and<br>k = 1.14% = 0.0114<br><br>For<br>Q(t) = 7 billion = 710^9<br>Q(t)= Q0exp(kt)<br>solve for t by taking ln (base e log) of both sides<br>......	Apr 29, 2008 at 7:17:08PM
$5.00		Mathematics	5 dollars a question 8 questions in all	Semiannual compounding... ...mber of periods.<br><br>For 5 years: n=10<br><br>10,000 = P*(1+0.0325)^10<br>now solve this for P:<br>take base 10 log:<br>log(10,000) = l...	Apr 29, 2008 at 5:19:54PM
$2.00		Mathematics	take home quiz need help	Solutions to quadratics... ...sqrt(33))<br>x = 0.372 and x = -5.37<br><br>3.<br>x^2 -3x + 3 = 0<br>use quadratic formula:<br>x = 3/2 +/- sqrt(9-4*3)/2<br>x = 3/2 +/- sqrt(-3)/2<br>si......	Apr 28, 2008 at 2:34:55PM
$2.00	$4.92	Mathematics	graph	Comment on discriminant, equation of parabola... ...u need any help with this solution.<br><br>Since there are two places where the function crosses the x axis, this tells you that the discriminant is positive.<br><br>To get......	Apr 25, 2008 at 11:44:54PM
$5.00		Mathematics	Graphical Representation of Linear Equations	3 graphs: 1) intersecting, 2) parallel, 3) triangle ... equation of line is in the form<br>kx + jy = C, the slope is k/j. <br><br>3) Graph 3<br>Shows the lines from...	Apr 25, 2008 at 3:52:54PM
$5.00		Mathematics	Calculus help fast, its very easy but i'm not sure	Solution using derivative, with details... ... end and lengths of straight segments then differentiating to find a maximum.<br><br>Let <br>p be the perimeter = 1 km<br>p = 2l + 2pi*r<br>solve for l:<br>l = (p......	Apr 24, 2008 at 6:31:59PM
$2.00		Mathematics	write a system of equations having	Systems with unique, none, and infinite number of solutions... ... - y = 4 ; slope is 2/1 = 2<br>3x + 2y = 6 ; slope is -3/2 <br><br>Since these two slopes are different, there's a unique solution which is (x,y) = (2,0)<br><br><br&g......	Apr 19, 2008 at 11:50:22PM
$10.00		Computer Science	Basic Integer Statistics Project	stats.cpp, includes main() with test case... ...s<br> return (float) ar[(n-1)/2];<br>else <br> return (ar[n/2-1]+ar[n/2])/2.0;<br>}<br>/////<br>float StandardDeviation( int ar[], int n)<br>{<br>//......	Apr 19, 2008 at 5:04:08PM
$20.00	$16.39	Mathematics	Linear Equations	Graph, linear fit to data, answers to all questions... ...this temperature occurs.<br><br>Solve the equation for °C.<br>C = (F-32.0)/1.8<br><br>What is 75 °F in Celsius?<br>C = (75-32)/1.8 <br>C = 23.9 <br><......	Apr. 18, 2008 at 12:15:55AM
$1.00	$0.82	Mathematics	Positive Number	Positve real number -> polar form -> one real root... ...s form that we get the same number for any k.<br><br>Now, just take the nth root:<br><br>(a) R^(1/n) = [(R0)^(1/n)]exp( i2pi/n + i2kpi/n )<br><br>Now what we......	Apr 17, 2008 at 10:06:00PM
$2.00	$1.64	Mathematics	Miss Penny the chicken, due today 4-17-08 pm	Checking your calcs: ans to Q about 45 or fewer success ... or 3.13%. Is this correct?<br>What you\'ve calculated is the pdf not the cdf. You have the correct answer, I think that you just typed cdf when you meant pdf. <br><br>Would it be......	Apr 17, 2008 at 3:59:14PM
$1.00		Mathematics	if 10 is seperated into t...	Algebraic representation of parts of 10... ...l \'expressions\'. Much of what is done in algebra is using expre...	Apr 16, 2008 at 7:08:00PM
$2.75	$4.50	Computer Science	Java Power	Class Power w/ Static method Power(base,exponent) using Math.pow(); includes main() with test cases ... the method Math.pow(b,e)!<br><br>File: Power.java<br><br>This file contains the definition of class Power<br>with static method static double power(double base, double......	Apr 14, 2008 at 3:00:50PM
$4.50	$14.76	Computer Science	Java Circle	Circle class w/ constructors, Cross method, main() with simple test cases ...<br>// No argument constructor:<br>public Circle( )<br>{<br>this.xcenter = this.ycenter = 0.0;<br>this.radius = 1.0;<br>}// ****<br>// Determines if......	Apr 13, 2008 at 8:51:50PM
$4.00	$3.28	Computer Science	Java Complex	Complex class w/ constructors, add, subtract, print methods, main with test cases.; ...real, double imag) <- constructor<br>public Complex() <- no argument constructor <br>public Complex add(Complex z)<br>public Complex subtract( Complex right )<br>public......	Apr 13, 2008 at 4:15:42PM
$6.00	$9.84	Computer Science	Matrices	Class Matrices, with constructors, get, set, det, isNull, isUnitary, scaler mult, matrix addition, main() with test case ...tructor<br>// ***<br>// ***<br>public void set( int r, int c, double value )<br>{<br>this.dbl_matrix[r][c] = value;<br>return;<br>}// end set()<br>/......	Apr. 13, 2008 at 12:00:59AM
$3.00	$7.38	Computer Science	Java Matrix	Class Matrix with constructor, scalerMult, add, set, get methods... ...t rows, columns;<br>// *****<br>public Matrix (int rows, int columns, double constant) {<br>this.rows = rows;<br>this.columns = columns;<br>dbl_matrix = new double[rows][......	Apr 12, 2008 at 9:03:45PM
$5.00		Mathematics	Density Function	Partial solution: i) throught iv) but no graphs ...nt to use the value of h=2/3 rather than the symbol h)<br><br>iii) (2)<br>The probability of X >= 2 is the area under f(x) for x >= 2.<br>This area is h*1 = h = 2/3<br......	Apr 08, 2008 at 9:38:08PM
$2.00		Mathematics	Math Help	Acceration due to a net force ... ...tion. You must be careful of units, however. The SI system is much more convenient than english units.<br><br>net force = mass * acc...	Mar 15, 2008 at 10:59:30PM
$3.00		Mathematics	Math help please	Power is work/time... ... <br>Putting this together:<br>1 watt = 1 kg*m^2/s^3<br><br>So that your answer is 196 watts<br><br>Keep in mind that power is the rate of doing work. Work h...	Mar 15, 2008 at 10:32:14PM
$1.00		Mathematics	math story question.	Rate of pie eating...mmm, Pie... ...whole pie in 2 minutes then he can eat 1/6 of a pie in 1/6 of 2 minutes:<br><br>Time to eat 1/...	Mar 06, 2008 at 5:47:35PM
$0.25		Mathematics	ALG-2/Tri	Larget positive angle coterminal..... ...ny multiples of 360 degrees that are need to get a p...	Mar 04, 2008 at 6:47:05PM
$0.41		Mathematics	ALG-2/Tri	Combinations... ...e result is the product of these two indepen...	Mar 03, 2008 at 7:22:35PM
$1.00		Mathematics	problem solving	Red, green and other colored buttons... ...g = 1/6 be the green fraction<br>Fo be the buttons that are not red and not gre...	Mar 03, 2008 at 6:07:44PM
$5.00	$4.09	Computer Science	Estimating Resources	Time $850,000. will last a calculated 'burn rate'... ...r/wk @ $30/hr<br>= 44030 = $4,800./wk<br><br>1 project manager @ 40 hr...	Mar 02, 2008 at 11:27:08PM
$0.37		Mathematics	ALG-2/Tri	Number of possible sequences of letters and numbers... ...<br>101010*10 number conbinat...	Mar 02, 2008 at 3:38:22PM
$4.50	$3.69	Mathematics	Clarification on Diagrams	Discussion of Venn diagrams.... ...nd penguins would be in the orange circle, in the part which does not overlap with the blue circle. Mosquitoes have six legs, and fly, so the point for mosquitoes would be in the part of the blue......	Feb 28, 2008 at 11:43:24PM
$4.00	$3.28	Mathematics	Estimating	Help with estimating, but rounding and counting rectangles... ...8000:<br>6000 x 8000 = 48x10^6<br>The exact answer is: 47,820,108<br>The percentage error is:<br>(48x10^6-47820108)/47820108*100 = 0.376% (which is a very small errow)<br>......	Feb 25, 2008 at 5:55:53PM
$3.00	$2.46	Mathematics	Math	Step by step solution of #1, #2 is OK, different result for #3 ...the numbers shown along the diagonal. You get a sum of 57. Now all rows and columns must add to 57. Now you just look for a row or column that has 2 numbers filled in. You can then get the t...	Feb 23, 2008 at 5:51:31PM
$2.00		Economics	help	Marginal cost is.... ...more unit of output.<br><br>Mathematically, it is the slope...	Feb 21, 2008 at 7:43:19PM
$1.00		Computer Science	What is the maximum memor...	16 bit memory space address... ...= 65536<br><br>Note that an actual address i...	Feb 20, 2008 at 4:38:37PM
$1.50	$1.23	Astronomy	General Astronomy Problem	Inverse square scaling of gravity acceleration... ...the square of the distance. So, here we know the acceleration at a distance of 6,400 km and we want to calculate it at distances of:<br>6400+100,<br>6400+1000,<br>...	Feb 11, 2008 at 01:07:55PM
$2.00	$1.64	Astronomy	General Astronomy Question	Round trip radar signal 0.7 Au out and back... ...speed of light.<br><br>1 AU:<br>149,597,870.691 km<br><br...	Feb 10, 2008 at 03:58:12PM
$1.99	$1.63	Mathematics	Prove	Even and odd functions: applying the definition... ...is even.<br><br>b)<br>This one's a little tricky. The only function that is both odd and even is f(x)=0. This is bec...	Feb 09, 2008 at 9:41:10PM
$2.00	$1.64	Mathematics	Elements	Number of elements in the 'cartesian product' AxB... ... are ordered pairs (a,b) where<br>a is an element of A and <br>b is an element of B. <br><br>If...	Feb. 07, 2008 at 12:55:18AM
$1.00		Mathematics	wut does x equal	Assuming you mean (x-3)^2+10=74..... ...<br>a) (x-3) = +8<br>and<br>b) (x-3) = -8<br><br>For a:<br>add 3 to both sides:<br>x = 11<br><br>for b:<br>add 3 to both sides:<br>x =......	Feb 01, 2008 at 8:45:42PM
$1.00		Chemistry	omg quick	Sodium (Na) combines with oxygen (O2) to form Na2O... ...d in air about 20% sodium peroxide is formed:<br><br>6 Na + 2 O2 -> Na2O + Na2O2...	Feb 01, 2008 at 01:24:05PM
$1.00		Mathematics	Tree House Question	Ladder-tree-ground is a right triangle ... tree.<br>let B be the distance from the base of the tree to the bottom of the ladder, <br><br>Then for the right triangle:<br><br>L^2 = H^2+B^2<br>solve this ...	Jan 29, 2008 at 7:57:29PM
$1.00		Mathematics	Algebra 1	Slope of line ...r><br>y = m*x+b<br><br>where m is called the slope. For a change in x of 1 unit, ...	Nov 30, 2007 at 4:25:34PM
$1.00		Physics	Simple Physics Problem 2	Conserve momentum... ...momentum of the cannon is equal in magnitude but opposite in direction to that of t...	Nov. 15, 2007 at 12:50:49AM
$1.00		Physics	Simple Physics Problems	Energy is power x time... ... energy/time. Raising the mass against gravity is work another form of energy. <br><br>You want to equa...	Nov. 15, 2007 at 12:43:07AM
$1.00	$0.82	Mathematics	Test Due today.....Please help	Plug and chug... ...0 +15 - 4<br>= -35 - 4<br>= -39<br><br>Be careful about signs. Note that for f(-2) the min...	Oct 30, 2007 at 2:00:06PM
$0.25		Psychology	Psychology Error, can you plase help me?	It could be a mistake... ...ou're surprised to see tha F when you had a C from the progress report. It is probably best ...	Oct 26, 2007 at 01:02:56PM
$2.25		Mathematics	Linear Equations	Solution for 1 only, no graphs... ...3x + 7<br>x = -7/3<br>now get y from either eqution:<br>using eqn 2: y = -(-7/3) - 4 = 7/3-12/3 = -5/3<br><br>2. The lines have the same slope, thus they are parallel. ......	Oct 14, 2007 at 02:11:26PM
$1.00		Mathematics	math	Perfect squares... ...rfect squares\'. This means that they are whole number solutions to:<br><br>x*x = n<br><br...	Oct 10, 2007 at 11:06:38PM
$1.00		Mathematics	algebra 1	X and Y intecepts from slope-intercept form... ...y to plug in an <br>X value of 0 and get a Y value. Recall that the Y axis is all the points that ha...	Oct. 04, 2007 at 12:26:56AM
$1.00	$0.82	Mathematics	Car Colors	Two independent choices: product rule... ...ter what order you make the choices. You multiply the independent choices. So, there...	Oct 02, 2007 at 7:44:23PM
$1.00		Mathematics	CUMMULATIVE EXAM	Place value number system ...en the 1 10s column, the 100s column, the 1000s column, etc. <br><br>So,<br>684 means <br>4x1 + 8x10 + 6x100 = <br>4...	Sep 26, 2007 at 9:17:09PM
$1.00		Mathematics	pow	Number of eggs, Diophantine equation... ...arted with.<br>Having 2 left over when grouped by 3s means that<br>N-2 is an integer multiple of 3. In equation form, this is<br>N-2 = k*3, for an integer 3.<br><br>In......	Sep 16, 2007 at 3:31:48PM
$1.00		Mathematics	pow	Number of eggs... ...ans that<br>N-2 is an integer multiple of 3. In equation form, this is<br>N-2 = k*3, for an integer 3.<br><br>In order for N-2 to be divisible by 3,4,5,6 it must be<br>an......	Sep 16, 2007 at 3:16:11PM
$5.00	$4.09	Physics	Basic Physics 1D Kinematics	Solve eqn relating walking time east to west, then... ... 1.27<br>\|Ve\| = 0.41<br><br>The walking time west is given by:<br>Dw = VwTw = 6440 = VwTw<br>Tw = 6440/2.58 = 2496.1 s<br><br>Plugging this value of Tw......	Sep 01, 2007 at 6:12:19PM
$0.50		Mathematics	systems of equations	Equation of line... ...s. <br><br>You can put the equation in what\'s called \'slope-intercept\' form...	May 30, 2007 at 3:58:23PM
$3.50	$2.86	Mathematics	Word problems, use proportion.	Solutions using porportion and... ...= x<br>47250 = $11,750. <br>This makes sense, because it\'s just the number of hours times the hourly rate.<br><br>****<br><br>2. A new virus is released on the......	May 29, 2007 at 10:53:53PM
$3.50	$8.58	Mathematics	polynomials	Misc polynomial equations.... ...ials of degree one.<br><br> The degree of a polynomial is the largest exponent in the polynomial. *<br><br>x3 + 4x + 8<br>If you mean x times 3, then the highest......	May 29, 2007 at 4:49:02PM
$10.00	$16.38	Mathematics	Company Discount	Discounted price comparison algebra... ...ugh the origin with slope 0.75.<br><br>For B:<br>The price paid vs full price is a straight line through the origin with slope 1 up to a full price of $50. Then the line bends over......	May 28, 2007 at 7:58:37PM
$5.00		Mathematics	Elementary and intermediate algebra-college level	Solution posted and attached ...28x^3+8x^2-20x+4x^2+12x<br>28x^3+12x^2-8x<br><br>2. If P= 7y + 2xy - 6x and Q= 5 - 7y find the value of 3P-4Q<br>Calc 3P and 4Q separately, then combine:<br>3P = 21y+6xy-......	May 18, 2007 at 2:59:02PM
$3.00	$2.46	Mathematics	recurrence relation	Recurrence relation, calculated values and spreadsheet. ...lation<br>a(n) = 2*a(n-1)+a(n-2)<br>initial conditions:<br>a(1)=2<br>a(2)=3<br><br>results in the recurrence relation...	May 17, 2007 at 9:01:44PM
$1.00	$0.82	Mathematics	recurrences	Recurrance relation solution... ...u\'ve written it every a(k) = 0!<br><br>For <br>a=0, a(0) = 0<br>a=1, a(1) = 2*a(0) = 0<br>a=2, a(2) = ...	May 16, 2007 at 10:54:12PM
$1.00		Mathematics	Math problem	Committe of 5 from 12... ...ng, effectively decreasing the number of possibilities.<br><br>So, you want to choose 5 people from 12, without replacement, and without regard to order. The is ...	May 09, 2007 at 9:22:52PM
$5.00	$4.09	Business	Business Statistics	Conditional probability... ...then p(no dis) = 1-p(dis) = 0.99999<br><br>The second set of branches are the test branches<br>Now, at the end of the p(dis) branch add:<br>p(posT) = 1 <- test will always......	May 09, 2007 at 1:51:39PM
$1.00		Mathematics	Discrete math	Choosing a committee of 4 from 12 ... rule of statistics.<br><br>First, choose chair: there are 12 ways to do this.<br><br>Second, choos...	May 08, 2007 at 5:32:38PM
$1.00		Chemistry	calculations	Find volume then multiply by rate... ...s:<br><br>V = widthlengthdepth<br>Since all the dimenensions hav...	Apr 23, 2007 at 12:23:38PM
$3.00		Mathematics	Algebra - Exponents	Solutions to polynomial equations ...r>For X=25Y-4Y^2+2y^3<br>at Y = 10 then<br>X = 2510 - 4100 +2*1000<br>Now simpli...	Apr 20, 2007 at 10:15:01PM
$1.00		Mathematics	timing	Multipling mixed numbers... ...by 5:<br><br>(7/1)(5/5) = 35/5<br><br>Now 7+2/5 = 35/5 + 2/5 = 37/5<br><br>Now do the same for 5+2/7:<br><br>5+2/7 = (5/1)(7/7) + 2/7 =<br>35/7......	Apr. 18, 2007 at 12:07:06AM
$2.00		Mathematics	Analytical Geometry	Hyperbola asymptotes... ...rigin with slopes plus and minus b/a. That is<br><br>y=5x/4 and y=-5x/4.<br><br>Check,<br>for the l...	Mar 28, 2007 at 1:06:29PM
$1.00		English	abc order	Alphabetical sort: 18 words, grology changed to geology ...biology<br>5 biopsy<br>6 biosphere<br>7 enact<br>8 export<br>9 geography<br>10 geolo...	Mar 15, 2007 at 2:14:03PM
$5.00	$4.09	Mathematics	Problem Solving	Solution to: "Alive all or part of 5 decades..." ... the end of 1966. So, the earliest that she could have been born is Jan 1, 1966. The latest would be the last day of ...	Jan 13, 2007 at 03:06:17PM
$0.50		Mathematics	A;gbera	No need to use logs, properties of exponents is enough... ...<br><br>Now, any base to the power zero equals 1, <br>so you know that<br><br>2+4t ...	Dec 10, 2006 at 10:41:28PM
$1.00		Mathematics	help me	Some methods for reasonableness... ...nd see that your answer is in between. If you're looking for the definite integral it must be less than the area of a rectangle whose height is the max of your function...	Nov 20, 2006 at 03:32:13PM
$10.00	$8.19	Mathematics	Statistics #8	Ho: uniform, Ha: not...goodness of fit: chi-square test statistic ...lue for chi-squared, p=0.95, df=2 is 5.991<br><br>Since our t.s. > 5.991 we reject the null hypothesis. Hence we conclude that the distribution is not uniform.<br><br>Note......	May 13, 2006 at 8:41:08PM
$12.50	$10.25	Mathematics	Statistics #1	ER yes or no -> binomial... ...and then ask for a clarification.<br><br>c) Std dev is square root of variance, <br>var(X) = 20*(.34)(1-.34) = 4.488<br>sqrt(var) = sqrt(4.488) = 2.1185<br><br>d)......	May. 11, 2006 at 12:22:39AM
$10.00	$8.19	Mathematics	Statistics Problem(s)	Serum Cholesterol, 1-sided normal hypothesis test... ...t; 10^(-4); if it\'s the sample you get a p-value of .27.<br><br>Assume that the sigma refers to the sample. Then calculate the standard normal variable:<br>Z = (Xbar-mu)/sigma = (2......	May 10, 2006 at 7:47:59PM
$10.00	$8.19	Mathematics	stastics #6	Binomial model ...nomial RV. It's value is the number of sucesses in n trials For a large number of samples the standard normal is an excellent approximation for <br>Z = (X-np)/sqrt(np(1...	May 05, 2006 at 03:15:25PM
$10.00	$8.19	Mathematics	Statistics Problem	Left tail of standard normal dist... ...u,sigma), unwind the algebra to get <br>mu.<br><br>P( ...	May 04, 2006 at 11:31:42PM