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OpenStudy (anonymous):
What is the sum of a 30–term arithmetic sequence where the first term is 73 and the last term is –101?
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OpenStudy (anonymous):
a = 73 a +29d = -101 or l = -101 s = 30/2{ 73 - 101) s = -994
OpenStudy (anonymous):
the choices are -476, -448, -420, -392
OpenStudy (anonymous):
okay then i must have done some mistake
OpenStudy (anonymous):
yeah your correct sorry -420
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