Concept explainers
1–16 ■ Population Growth These exercises use the population growth model.
Bat Population The bat population in a certain Midwestern county was 350, 000 in 2012, and the observed doubling time for the population is 25 years.
(a) Find an exponential model
(b) Find an exponential model
(c) Sketch a graph of the population at time t.
(d) Estimate how long it takes the population to reach 2 million.
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Algebra and Trigonometry (MindTap Course List)
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