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choli [55]
3 years ago
7

I don't understand someone help me help out a barb plz.

Mathematics
1 answer:
ss7ja [257]3 years ago
8 0

Answer:

Step-by-step explanation:

so you are doing 4x times 4x which = 16x

so now you do 16x-9 which = 7x

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antoniya [11.8K]

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3 years ago
Given the formula, Sn=a 1-r^n/1-r, what is the sum of the first nine terms of the geometric series: 324, -108, 36, -12...
vlada-n [284]

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