SOLUTION: A country’s population doubled in 45 years. What is the exponential growth rate? Round your decimal answer to the nearest hundredth. (A) 0.02 (B) 0.45

Algebra ->  Real-numbers -> SOLUTION: A country’s population doubled in 45 years. What is the exponential growth rate? Round your decimal answer to the nearest hundredth. (A) 0.02 (B) 0.45       Log On


   



Question 975276: A country’s population doubled in 45 years. What is the exponential growth rate? Round your decimal answer to the nearest hundredth.
(A) 0.02
(B) 0.45
(C) 0.69
(D) 1.54
(E) none of the above

Answer by farohw(175) About Me  (Show Source):
You can put this solution on YOUR website!

For doubling time, use the formula, +r+=+ln2%2Ft where t = time and r = growth rate.

r = ln2%2F45+=+0.0154

Your growth rate, 0.0154 is 1.54%. So your answer is D.