Question: It is desired to build a tank in the shape of a cylinder with a flat bottom and topped by a hemisphere if the material

It is desired to build a tank in the shape of a cylinder with a flat bottom and topped by a hemisphere if the material costs for the floor, wall, and roof (semi-spherical) are $8, $6, and $4, what dimensions will minimize the cost? if the desired capacity is 4500 m ?

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