The cost, in thousands of dollars, of airing x television commercials during a s

Question

The cost, in thousands of dollars, of airing x television commercials during a sports event is given by C(x) = 150 + 2,500x - 0.03x^2. (a) Find the marginal cost function C?(x). HINT [See Example 1.] C?(x) = 2500 -.06x Use it to determine how fast the cost is increasing when x = 4. 2499.76 ., thousand dollars Compare this with the exact cost of airing the fifth commercial. The cost is going up at the rate of $ 2499.76 per television commercial. The exact cost of airing the fifth commercial is $ 2499.73 . Thus, there is a difference of $ 0.03 .

Explanation / Answer

Oh the cost itself is in thousands of dollars....

First blank --> 2499.76 thousand dollars ---> 2499.76 * 1000 ---> 2499760

Second blank ---> 2499730

Third blank ---> 30

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