A certain species of deer is to be introduced into a forest, and wildlife experts estimate the population will grow to P(t) = (944)3 t/3, where t represents the number ofyears from the time of introduction.What is the tripling-time for this population of deer?

Answer :

Ok, so

Here we have the function:

[tex]P(t)=944(3)^{\frac{t}{3}}[/tex]

Now we want to find the tripling-time for this population of deer.

If we make t=0, we will find the initial population of deer. This is:

[tex]P(0)=944(3)^{\frac{0}{3}}=944[/tex]

Now, we want to find the time "t" such that this population is the triple.

This is:

[tex]\begin{gathered} 944(3)=944(3)^{\frac{t}{3}} \\ 2832=944(3)^{\frac{t}{3}} \\ \frac{2832}{944}=3^{\frac{t}{3}} \\ 3=3^{\frac{t}{3}} \end{gathered}[/tex]

We got this exponential equation:

[tex]3=3^{\frac{t}{3}}[/tex]

As the base is the same, we could equal the exponents:

[tex]\begin{gathered} 1=\frac{t}{3} \\ t=3 \end{gathered}[/tex]

Therefore, tripling-time for this population of deer are 3 years.

Other Questions