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OpenStudy (anonymous):
What is the sum of a 22-term arithmetic sequence where the first term is 55 and the last term is -29? Choose one answer. a. 260 b. 286 c. 312 d. 338
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OpenStudy (anonymous):
Could you show us what you've done so far please?
OpenStudy (mertsj):
You need to hunt up your formula for the sum of an arithmetic sequence.
OpenStudy (anonymous):
What is the 7th term of the geometric sequence 3, 9, 27, ...? Choose one answer. a. 2,187 b. 6,561 c. 19,683 d. 59,049
OpenStudy (goformit100):
First of all for solving this question do you know the conception of : arithmetic sequence.
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