# algebra

A town has a population of 8400 in 1990. Fifteen years later, its population grew to 12500. Determine the average annual growth rate of this town's population. How do i solve this using applications of exponential functions?

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1. 12500=8400(R)^15

ln12500=ln8400+15lnR
solve for R

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bobpursley
2. it doesnt work,
:(

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