BA10106023    高中 / 數學   

2015/11/09 20:58

P213

64.

Commissioners of a certain city determine that when x million dollars are spent on controlling pollution, the percentage of pollution removed is given by

P(x) = 100√x / 0.04x² + 12

a. Sketch the graph of P(x)

b. What expenditure results in the largest percentage of pollution removal?

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