Answer:
Explanation:
The population P of a certain city can be modeled by
 P=19000e0.0215t 
where T represent the number of years since 2000.
When t=1 the year is 2001 
when t =2 the year is 2002. This means that 
When t=0 the year is 2000
To determine the year when the population will be 40,000 , we will substitute P = 40,000 and solve for t. It becomes
40000 = 19000e^0.0215t
40000 / 19000 = e^0.0215t
2.105 = e^0.0215t
Take ln of both sides
0.7443 = 0.0215t
t = 0.7443/0.0215 
t = 34.62
Approximately 35 years
So the year will be 2035