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OpenStudy (anonymous):
the fourth term of a geometric sequence is 48 and the seventh term of the sequence is 384. determine the first term of the sequence.
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OpenStudy (hoblos):
7th = 4th * r^3 r^3 = 384/48 = 8 r=2 4th=1st* r^3 1st = 48/8 = 6
OpenStudy (anonymous):
Yeah, Hoblos is correct.
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