Question: Sandy i s making a closed rectangular jewellery box with a square base from two different woods. The wood for the top and bottom costs

Sandy is making a closed rectangular jewellery box with a square base from
two different woods. The wood for the top and bottom costs $20m2. The wood
for the sides costs $30m2. Find the dimensions that will minimize the cost of
the wood for a volume of4000cm3.
Sandy i s making a closed rectangular jewellery

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