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I’d like to check my answer for part a and part b and need help with part c

I’d like to check my answer for part a and part b and need help with part c-example-1

1 Answer

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Answer:

(b)962.18 square km

Step-by-step explanation:

Given the function:


f(A)=-7.5+204.9\ln (A)

The graph of the function is given below:

(b) To determine f^-1(1400), find the value of A at which f(A)=1400.


\begin{gathered} f(A)=-7.5+204.9\ln (A)=1400 \\ 204.9\ln (A)=1400+7.5 \\ 204.9\ln (A)=1407.5 \\ \ln (A)=(1407.5)/(204.9) \\ A=\exp ((1407.5)/(204.9))^{} \\ A\approx962.18 \\ \implies f^(-1)(1400)=962.18\operatorname{km}^2 \end{gathered}

(c)

In order for the number of species on the island to be 1400, the area of the island must be approximately 962.18 square km.

I’d like to check my answer for part a and part b and need help with part c-example-1
I’d like to check my answer for part a and part b and need help with part c-example-2
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