Minimum Average Cost The average cost per hour in dollars,  of producing x riding lawn mow...

Minimum Average Cost The average cost per hour in dollars,  of producing x riding lawn mowers can be modeled by the function

(a) Use a graphing utility to graph = (x).

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(b) Determine the number of riding lawn mowers to produce in order to minimize average cost.

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(c) What is the minimum average cost?