Choose the arithmetic series that is associated with this summation.

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asked Dec 12, 2019 173k views

1 Answer

Rcoyner · Answer 1 · 2019-12-18T16:31:19+0000

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

Choose the arithmetic series that is associated with this summation.

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