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Mathematics 26 Online
OpenStudy (anonymous):

Tony wants to build a rectangular pen for his animals. One side of the pen will be against the barn; the other three sides will be enclosed with wire fencing. If Tony has 400 feet of fencing, what dimensions would maximize the area of the pen? Let w be the length of the pen perpendicular to the barn. Write an equation to model the area of the pen in terms of w. What width w would maximize the area?

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