Question

In the 1st generation, there are 8 raccoons in a forest.

Answer 1

`a(n)=8.3^(n-1)`

Choice D is correct

Explanation:

The sequence representing the number of raccoons;

8, 24, 72

is simply but a geometric sequence with first term 8 and common ratio 3.

The formula for the n-th term of a geometric sequence with first term x and common ration r is;

`a(n)=xr^(n-1)`

In the given case, x = 8 and r = 3

We substitute these values in the above formula;

`a(n)=8.3^(n-1)`