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You have 180 ft of fencing to construct the boundary of a rectangle. The rectangle...

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Algebra

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You have 180 ft of fencing to construct the boundary of a rectangle. The rectangle haslength I and width w. Write the perimeter P and area A of the rectangle in terms of I and w. Write A in terms of w only. Hint: use substitution. Find w that maximizes the area. What is the corresponding / that maximizes the area? What is the maximum area?

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