An open box with a square base is to have a volume of 12 ft3. (a) Find a function that models the surface area A of the box in terms of the length of one side of the base x. A(x) =        (b) Find the box dimensions that minimize the amount of material used. (Round your answers to two decimal places.) side length       ft height       ft

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A: Please see the below picture for detailed solution.

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Q: -1--4

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