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netineya [11]
3 years ago
6

The formula A=200e^.033t models the population of a particular city, in thousands, t years after 1998. When will the population

of the city reach 297 thousand?
Mathematics
1 answer:
svetoff [14.1K]3 years ago
7 0

Answer:

In the year 2010

Step-by-step explanation:

we have

A=200e^{0.033t}

where

A is the population in thousands

t is the number of years since 1998

so

For A=297 thousands

substitute and solve for t

297=200e^{0.033t}

simplify

1.485=e^{0.033t}

Apply ln both sides

ln(1.485)=ln[e^{0.033t}]

ln(1.485)=(0.033t)ln(e)

Remember that

ln(e)=1

ln(1.485)=(0.033t)

t=\frac{ln(1.485)}{0.033}

t=12\ years

1998+12=2010

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