The population of a city can be modelled by the function P(x) = -22.5x2 +428x + 1100, where x is the number of years since
1990. According to the model, when will the population be the highest?

1991
1999
2002
2005

1

Population model

P=375.55e^(-0.01052t)

we are required to find t when p=300000.  

substituting the values in formula and solving for t we get:

300000=375.55e^(-0.01052t)

this will give us

798.828385=e^(-0.01052t)

getting the natural log of both sides will be:

6.683146136=0.01052t

t=635.28~635

Given that t=0 in 1990, the population would be 300000 in the years 2625

Step-by-step explanation:

is should be y = 5x

step-by-step explanation:

correct me if im wrong

think the answer is 30 degrees. if not than it is 20 degrees. not 100% sure. let me know if it was right.

gill russ