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bezimeni [28]
3 years ago
7

(08.04 MC) Find the sum of an 8-term geometric sequence when the first term is 7 and the last term is 114,688 and select the cor

rect answer below.
Mathematics
1 answer:
klemol [59]3 years ago
3 0
Starts off at 7 ends at114688, subtract them, 114681. Now there are 8 terms so subtract 1 because you're starting from the beginning, that leaves 7. Now divide 114681/7=16,383 difference per point, Now 1st pt is 7 2nd is 16390 3rd is 32773 4th is 49156 5th is 65539 6th is 81922 7th is 98305 8th is 114688 Now add these= 458780
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