The table shows the estimated percentage P of the population of Europe that use cell phones. (Midyear

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The table shows the estimated percentage P of the population of Europe that use cell phones. (Midyear estimates are given.)

Year 1998 P 28 1999 39 2000 55 2001 2002 2003 68 77 83

(a) Find the average rate of cell phone growth 

(i) From 2000 to 2002 

(ii) From 2000 to 2001

(iii) From 1999 to 2000 In each case, include the units. 

(b) Estimate the instantaneous rate of growth in 2000 by taking the average of two average rates of change. What are its units? 

(c) Estimate the instantaneous rate of growth in 2000 by measuring the slope of a tangent.

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Calculus

ISBN: 9780495011606

6th Edition

Authors: James Stewart

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