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3 years ago

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

Mathematics

1 answer:

Alina [70]3 years ago

7 0

Answer: C.) - 896

Step-by-step 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

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Proof below.

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Quadratic Formula

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Learn more about the quadratic formula here:

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