Question
Asked Oct 28, 2019
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The marketing division of a large firm has found that it can model the sales generated by an advertising campaign as
1.4 millions of dollars
S(u) 0.75u
when the firm invests u thousand dollars in advertising. The firm plans to invest
u(x)2.8x + 59x +200 thousand dollars
each month where x is the number of months after the beginning of the advertising campaign
How quickly will the sales for this firm be changing when x = 16? (Round your answer to three decimal places.)
million per month
A-
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The marketing division of a large firm has found that it can model the sales generated by an advertising campaign as 1.4 millions of dollars S(u) 0.75u when the firm invests u thousand dollars in advertising. The firm plans to invest u(x)2.8x + 59x +200 thousand dollars each month where x is the number of months after the beginning of the advertising campaign How quickly will the sales for this firm be changing when x = 16? (Round your answer to three decimal places.) million per month A-

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Expert Answer

Step 1

From the given information, it is observed that the ...

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S 0.75u 1.4 dS d (0.75fu +1.4) dx dx 0.75 du 2Vu dx 0.75 -2.8x2 59x200 ux)2.8x2 59x + 200 2-2.8x259x + 200 dx 0.75 (-5.6x +59) 2-2.8x259x+ 200 0.75(-5.6x 59) 2V-2.8.x2 59x+ 200

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