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April 25, 2015

Homework Help: calculus

Posted by Hard help plz on Thursday, October 28, 2010 at 3:23pm.

A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $2/ft2. The metal for the four rectangular sides costs $3/ft2. Find the dimensions that minimize cost if the box has a volume 20 ft3.

Top and bottom should be squares with sides of length L = ft
The height of the box should be h = ft

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