Suppose you have 54 feet of fencing to enclose a rectangular dog pen. the function a = 27x - x2, where x = width, gives you the area of the dog pen in square feet. what width gives you the maximum area? what is the maximum area? round to the nearest tenth as necessary.

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6 May, 03:24

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Kimberly Watts · Answer 1

Take first derivative of area function and set it to zero

da/dx=27-2x=0

So x=27/2 = 13.5

a=182.25