A population grows from 11,000 to 18,000 in five years.
Round your answers to three decimal places.
(a) Assuming the growth is exponential, find the annual growth rate.
Final Answer: The annual growth rate is approximately \(\boxed{0.098}\).
Step 1 :We are given a population that grows from 11,000 to 18,000 in five years. We are assuming the growth is exponential, and we need to find the annual growth rate.
Step 2 :The formula for exponential growth is \(P = P0 * e^{rt}\), where \(P\) is the final population, \(P0\) is the initial population, \(r\) is the growth rate, and \(t\) is the time in years.
Step 3 :We can rearrange this formula to solve for \(r\): \(r = \ln(P/P0) / t\).
Step 4 :Substituting the given values into the formula, we get \(r = \ln(18000/11000) / 5\).
Step 5 :Calculating the above expression, we find that \(r\) is approximately 0.09849529701955885.
Step 6 :Rounding to three decimal places, we get \(r = 0.098\).
Step 7 :Final Answer: The annual growth rate is approximately \(\boxed{0.098}\).