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April 25, 2014

Homework Help: geometry

Posted by chris on Monday, November 7, 2011 at 8:01pm.

A wire 10 meters ong is to be cut into two pieces. One piece wil be shaped as a square, and the other piece will be shaped as a circle. (piece one is 4x, piece two is 10-4x)

a)Express the total area A enclosed by the pieces of wire as a function of the length x of the side of the square.

b)What is the domain of A?

c) Graph A=A(x). For what value of x is A smallest?

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