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OpenStudy (anonymous):
SOME ONEEE What is the sum of a 26–term arithmetic sequence where the first term is 12 and the last term is 237? I just dont understand
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OpenStudy (anonymous):
3237 The sum is equal to ( [LAST TERM] + [FIRST TERM] ) * ([TOTAL NUMBERS] / 2 ) in your case (12 + 237) * (26 / 2) = 3237
OpenStudy (anonymous):
thanks!
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