This exercise uses the exponential growth model.
The population of a certain city was 128,000 in 2014, and the observed doubling time for the population is 19 years.
AFind an exponential model $n(t)=n_0 2^{t / a}$ for the population $t$ years after 2014.
$n(t)=$
BFind an exponential model $n(t)=n_0 e^{r t}$ for the population $t$ years after 2014. (Round your $r$ value to four decimal places.)
$n(t)=$
The population of a certain city was 128,000 in 2014, and the observed doubling time for the population is 19 years.
AFind an exponential model $n(t)=n_0 2^{t / a}$ for the population $t$ years after 2014.
BFind an exponential model $n(t)=n_0 e^{r t}$ for the population $t$ years after 2014. (Round your $r$ value to four decimal places.)