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24 August, 01:17

Patricia wishes to have a rectangular-shaped garden in her backyard. she has 82 ft of fencing material with which to enclose her garden. letting x denote the width of the garden, find a function f in the variable x giving the area of the garden. what is its domain?

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  1. 24 August, 01:26
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    width=x

    perimeter=80

    or 2 (x+l) = 80

    so l=length=40-x

    so the area=x (40-x)

    the area can never be 0

    x (40-x) >0

    this gives the domain as 0
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