Question: An open - top box is to be made from a 1 2 inch by 4 2 inch piece of playic by removing a square

An open

-

top box is to be made from a

12

inch by

42

inch piece of playic by removing a square from each corner of the plastic and folding up the flaps on each side. What should be the length of the side a of the square cut out of each corner to get a box with the maximum volume? You may enter an exact answer or round to the nearest hundredth.

An open - top box is to be made from a 1 2 inch

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