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July 24, 2014

Homework Help: Math Calculus

Posted by Livia on Thursday, August 19, 2010 at 4:15am.

Three sides of a fence and an existing wall form a rectangular enclosure. The total length of a fence used for the three sides is 240 ft. Let x be the length of two sides perpendicular to the wall as shown. Write an equation of area A of the enclosure as a function of the length x of the rectangular area. Then find the value(s) of x for which the area is 5500 ft^2.

__________________
I I
x I I x
_________________________ Existing Wall

X is the shorter wall. The existing wall is longer than the one across from it, I tried to make it look like that in the picture.

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