Question

A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 80 ft of fence? What should the dimensions of the garden be to give this area?

Answer 1

estrudier help me

Answer 2

its urgent

Answer 3

Set side as x, length at 80-2x, area x(80-2x) and differentiate for max A.

Answer 4

find limit x tends to 4 (x-4)/(x^2-x-12)