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Mathematics 7 Online
OpenStudy (anonymous):

Suppose you have 100 ft of string to rope off a rectangular section for a bake sale at a school fair. the function A = -x^2+50x gives the area of the selection in square feet, where x is the width in feet. WHat width gives you the maximum area you can rope off? what is the maximum are? What is the range of the function? I dont just want the answer I need help undersatanding it

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