Mathematics, 24.02.2021 22:00 triciajfive

Find the sum of the first 9 terms of the following sequence. Round to the nearest hundredth if necessary.

30,-120, 480,...

Sum of a finite geometric series:

Sn= a1 - a1r^n / 1 - r

Does anyone knows the answer to this? Pls

Answers: 2

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Find the sum of the first 9 terms of the following sequence. Round to the nearest hundredth if nece...