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garik1379 [7]
3 years ago
5

Find the sum of the arithmetic sequence 22, 11, 0, -11, ..., –77.

Mathematics
1 answer:
blagie [28]3 years ago
7 0

Answer:

B.

Step-by-step explanation:

First you need to figure out how many numbers there are, so with this you can simply count 10. Then use the formula to plug in the numbers: 10(22-77)/2 to get the answer.

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