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OpenStudy (anonymous):
Identify the 16th term of a geometric sequence where a1=4 and a8=-8,748
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OpenStudy (anonymous):
a = 4 a_8 = ar^7 = -8748 ==> r^7 = -8748/4 = -2187 r = (-2187)^1/7 = -3 a_16 = ar^15 = 4(-3)^15
OpenStudy (anonymous):
=-57395628
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