Problem

The growth rate of the population of a county is
\[
P^{\prime}(t)=\sqrt{t}(3370 t+7050)
\]
where $t$ is time in years. How much does the population increase from $t=1$ year to $t=4$ years?
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Answer

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Answer

Final Answer: \( \boxed{74688} \)

Steps

Step 1 :To find the increase in population from \( t=1 \) year to \( t=4 \) years, we need to integrate the given growth rate function \( P'(t) \) over the interval from \( t=1 \) to \( t=4 \).

Step 2 :Let \( P'(t) = \sqrt{t}(3370t + 7050) \).

Step 3 :Integrate \( P'(t) \) from \( t=1 \) to \( t=4 \) to find the population increase.

Step 4 :The population increase is \( 74688 \).

Step 5 :Final Answer: \( \boxed{74688} \)

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