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OpenStudy (anonymous):
How many terms are in the arithmetic sequence 7, 0, −7, . . . , −175? Hint: an = a1 + d(n − 1), where a1 is the first term and d is the common difference.
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OpenStudy (anonymous):
possible answers 27 28 29 30
OpenStudy (anonymous):
can anyone help?
OpenStudy (fortytherapper):
Lets first find a1 and d. Any idea
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