Three problems - StudentOfFortune.com

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$1.00 Three problems

From Mathematics: Algorithms
Due on Dec. 04, 2008
Asked on Dec 03, 2008 at 8:38:15PM

Q:
Three problems on some homework that I have gotten different answers on. If anyone solves please show me how you got the answers, equation wise.

The maximum number of volts, E, that can be placed across a resistor is given by the formula E = , where P is the number of watts of power that the resistor can absorb and R is the resistance of the resistor in ohms. If a 2-watt resistor can have at most 50 volts of electricity across it, find the number of ohms of resistance of this resistor.

Solve:
SR = Square Root
SR 6x + 3 = SR 4x - 3 + 4

Solve equation by completing the square. Equations have real number solutions:
x^2 - 2x - 2 = 0

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Posted by:

sudipta from IIM Bangalore

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$1.50 2nd question on square root answered

This tutorial was purchased 1 time and rated D by students like you.
Posted on Dec 03, 2008 at 9:09:37PM

A:
Preview: ... + 25
=> 64x - 48 = x^2 - 10x + 25
=> x^2 - 74x + 73 = 0
=> x^2 - 73x - x + 73 = 0
=> x(x - 73) - 1(x - 73) = 0
=> (x - 1)(x - ...

The full tutorial is about 196 words long .

Posted by:

sudipta from IIM Bangalore

Rating (486): A
Questions Asked: 0
Tutorials Posted: 3756, earned $12,567.57

$1.00 Answer to the 3rd question

This tutorial was purchased 1 time and rated D by students like you.
Posted on Dec 03, 2008 at 9:11:31PM

A:
Preview: ... - 1)^2 - 1 - 2 = 0
(x - 1)^2 - ...

The full tutorial is about 47 words long .

Posted by:

sudipta from IIM Bangalore

Rating (486): A
Questions Asked: 0
Tutorials Posted: 3756, earned $12,567.57

$1.50 Answer to the 1st question on resistor

This tutorial was purchased 1 time and rated D by students like you.
Posted on Dec 03, 2008 at 9:14:01PM

A:
Preview: ... R = 2500
=> R = 2500/2
=> R ...

The full tutorial is about 37 words long .