Find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer below.

asked Apr 17, 2021 14.8k views

3 votes

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4 votes

Answer: 2,044

Explanation:

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MilesDyson answered Apr 19, 2021

4.7k points

4 votes

Answer:

2,044

Explanation:

S9=G1 (1r^n)/1-r

G9=G1r^8, r=2

S9=(4)(-511)/-1=2,044

Patric answered Apr 23, 2021

4.8k points

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