The Marginal cost of a product can be thought of as the cost producing one additional unit output. For example if the marginal cost of the producing of the 50th product is $6.20 it cost $6.20 to increase production from 49 to 50 units of output. Suppose the marginal cost C (in dollars) to produce X thousand MP3 players is given by the function C(x)=^2-100x+7100.  eighth. A. How many players should be produced to minimize the marginal cost? B.

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