SOLUTION: In 2010, the population of a country was 72 million and growing at a rate of 1.8% per year. Assuming the percentage growth rate remains constant, express the population, P, in mill

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: In 2010, the population of a country was 72 million and growing at a rate of 1.8% per year. Assuming the percentage growth rate remains constant, express the population, P, in mill      Log On


   

Question 862105: In 2010, the population of a country was 72 million and growing at a rate of 1.8% per year. Assuming the percentage growth rate remains constant, express the population, P, in millions, as a function of t, the number of years after 2010.
P=f(t)=
Answer by josgarithmetic(39628) About Me  (Show Source):
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Continuous exponential growth, P%28t%29=f%28t%29=72e%5E%280.018t%29. This is just a more specific form of P=Ie%5E%28rx%29, where r is the percentage growth rate as decimal and x is time for value P, and I is initial value.