Question

12. 0/1.53 POINTS PREVIOUS ANSWERS The rate of sales of a certain brand of bicycle by a retailer in thousands of dollars per month is given by s(e) - 38+ - 0.3322 where t is the number of months after an advertising campaign has begun. (a) Find the amount of sales, in thousand of dollars, for the first four months after the start of the advertising campaign. Give you answer to three dec $ 708.25 X thousand dollars (b) Find the average sales per month for the second four month period of the advertising campaign. Give you answer to three decimal places. $ 283.5 X thousand dollars per month 13. - 1.64 POINTS Suppose that copper is being projected to be extracted from a certain mine at a rate given by P(t) - 260e-0.17 where P(t) is measured in tons of copper and is measured in years. (a) How many tons of copper is projected to be extracted during the second six year period? Give you answer to three decimal places tons (b) How many tons of copper is projected to be extracted during the seventh and eighth years? Give you answer to three decimal places tons Submit Assignment Save Assignment Progress

Answer 1