Population of bats in year 2015 is 5536.
The given function A(t) = predicts the population of bats after t years.
Here A(t) = population after ‘t’ years
k = growth constant
t = time in years
= initial population
In year 2000 population of bats A(t) = 34,000
Since rate of decrease in population k = 0.121 per year
So population in 2015 will be
= 34,000 [ ]
= 34,000 ( 0.162837)
= 5536 bats
Therefore, population of bats in year 2015 is 5536.