Find a9 for the geometric sequence 5, –20, 80, ...

asked Apr 22, 2022 15.8k views

2 votes

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5 votes

Answer:

327680

Explanation:

The general formula of the formula for the sequence is 5*(-4)^(n-1). The 9th term will be 5*(-4)^8=327680

Smsnheck answered Apr 27, 2022

2.9k points

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