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pre calc

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An open box is formedby cutting squares out of a peice of cardboard that is 18 feet by 26 feet and folding up the flaps. What size corner squares should be cut to yield a box that has a volume of 250 cubic feet

  • pre calc -

    If the corners are x on a side, then

    v = x(18-2x)(26-2x) = 250
    x = 0.6,7.485,13.9
    Of these only the two smaller values can be used.

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