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OpenStudy (anonymous):
What is the sum of the arithmetic sequence 3, 11, 19 …, if there are 26 terms? 1,222 1,261 2,486 2,678
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OpenStudy (anonymous):
d =8,a26=?, a26 =3+(25)8=2003 s=(26(3+203))/2=2678,answer
OpenStudy (anonymous):
2,678
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