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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
Cumulative iPod Sales Sales
(mi ion iPods) 2.52 7.536 67.542 113.372 (a) Find the function for the quadratic model that gives sales in million iPods, where x is the number of years afterl2003, with data from 0 S X S 5. (Round all numerical values to three
decima places.) 5(x) = million iPods (b) Write the derivative for the sales model. (Round all numerical values to three decimal places.) s'(x) = million iPods per year (c) Calculate the rate of change of cumulative sales in 2006. (Round your answer to three decimal places.)
million iPods per year Interpret the rate of change of cumulative sales in 2006. (Round your answer to three decimal places.) ---Select— v l by million per year. In 2006, cumulative iPod sales were
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