Question

During the first twenty years of business, this company's profit is given by:                           P(t) =...

During the first twenty years of business, this company's profit is given by:

                          P(t) = 0.1t^3 - 4.2t^2 + 54t

1. (calculus methods) Determine the year in which this company made the most profit.

2. Use (calculus methods) to indicate that the value is a maximum.

Math   Calculus   
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