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OpenStudy (anonymous):
What is the sum of a 38-term arithmetic sequence where the first term is 14 and the last term is 154? A.2,660 B.2,850 C.2,926 D.3,192
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OpenStudy (anonymous):
And sum would be - \[S_n = n (a + a_n )/2\]
OpenStudy (anonymous):
a_n is the last term in here ...
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