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the area of a rectangular pen is given by A ( x ) = - x ^ 2 + 4 0 x where A (

the area of a rectangular pen is given by A(x)=-x^2+40x where A(x) is the area and x is the width of the pen (in feet). Find the width that produces the maximum area.

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Related Calculus Of Variations Questions

Calculus Of Variations the area of a rectangular pen is given by A ( x ) = - x ^ 2 + 1 0 0 x where A ( x ) is the area and x is the width of the pen ( in feet ) . Find the width that produces the maximum area.
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