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September 19, 2014

September 19, 2014

Posted by **By Lana** on Wednesday, October 26, 2011 at 7:24am.

- preculculus -
**Reiny**, Wednesday, October 26, 2011 at 8:44amlet the width be x ft

let the length be y ft, (only one of those needed)

y + 2x = 600

y = 600-2x

Area = xy = x(600-2x)

= -2x^2 + 600x

complete the square,

-2(x^2 - 300x +**22500 - 22500**)

= -2(x-150)^2 + 45000

Max area is 45000 ft^2 when x = 150 and y = 300

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