Question: Sandy will make a closed rectangular jewellery box with a square base from two different woods. The wood from the top and bottom costs $0.0020/cm.

Sandy will make a closed rectangular jewellery box with a square base from two different woods. The wood from the top and bottom

costs $0.0020/cm. The wood for the sides costs $0.0030/cm . Find the

dimensions that minimize the cost for a box with volume 4000 cmFind

Sandy will make a closed rectangular jewellery box with a square base from two different woods. The wood from the top and bottom costs $0.0020/cm. The wood for the sides costs $0.0030/cm . Find the dimensions that minimize the cost for a box with volume 4000 cmFind the volume of the parallelepiped defined by the vectors OA = (2, -1,4), OB = (1,4, -3) and OC = (-1,2, -3)

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