What is the 8th term of the geometric sequence with this explicit formula ?

Question

asked Dec 28, 2021 173k views

1 Answer

Joaquin Casco · Answer 1 · 2022-01-03T00:29:32+0000

Answer: C.) - 896

Explanation:

Given the explicit formula :

An = 7 × (-2)^(n-1)

The 8th term of the geometric sequence using the formula will be :

n = 8

A8 = 7 × (-2)^(8-1)

A8 = 7 × (-2)^7

A8 = 7 × (-128)

A8 = - 896