Question

The first term of a geometric sequence is 320, and the common ratio is 0.5. What is the 5th term of the sequence?

Answer 1

The general term of a geometric sequence is given by `t_n = a xx r^(n- 1)`

Explanation:

In this case, `n = 5, r = 0.5 and a = 320`

`t_5 = 320 xx 0.5^(5 - 1)`

`t_5 = 20`

Hopefully this helps!