Solve the problem.Cigarette usage. The percentage of Americans 18 to 25 who use cigarettes...
Solve the problem.
Cigarette usage. The percentage of Americans 18 to 25 who use cigarettes has been decreasing at an approximately constant rate since 1974 (National Institute on Drug Abuse, www.nida.nih.gov). The function
can be used to estimate the percentage of smokers in this age group n years after 1974.
a) Use the formula to find the percentage of smokers in this age group in 2006.
b) Use the accompanying graph to estimate the year in which smoking will be eliminated from this age group.
c) Use the formula to find the year in which smoking will be eliminated from this age group.
Figure for Exercise 94
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