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OpenStudy (anonymous):
Identify the 8th term of the geometric sequence -2, -12, -72
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OpenStudy (anonymous):
-3,359,232 -559,872 559,872 3,359,232 Answers
OpenStudy (anonymous):
-3,359,232
OpenStudy (anonymous):
r = common ratio = U2 / U1 = -12 / -2 = 6. a is the first term = -2 Un = a (r)^n-1 U8 = -2 (6)^8-1 = -2 (6)^7 =? * thanks to tcarroll for pointing that out
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