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OpenStudy (anonymous):
Please help! A geometric series has a sum of 9,837. The common ratio is 3 and the first term is 9. How many terms are in the series?
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OpenStudy (anonymous):
The response to the last post didn't show up :/
OpenStudy (anonymous):
7
OpenStudy (anonymous):
S=a(r^n-1)/r-1
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