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Arte-miy333 [17]
3 years ago
10

Choose the arithmetic series that is associated with this summation.

Mathematics
1 answer:
Verizon [17]3 years ago
7 0
Plug n = 1 into the expression 20-9n and we get
20-9n = 20-9*1 = 20-9 = 11

So 11 is the first term of the series that we add up. Therefore the answer must be choice C, which has 11 listed as the first term added
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