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OpenStudy (anonymous):
What is the 7th term of the geometric sequence where a1 = –5 and a5 = –1,280? a –5,120 b 20,480 c –20,480 d 5,120
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OpenStudy (anonymous):
start finding the common ratio first .
OpenStudy (anonymous):
I don't know how when there is a gap
OpenStudy (anonymous):
common ratio = -4
OpenStudy (anonymous):
i encourage finding it urself
OpenStudy (anonymous):
it's c -20,480
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OpenStudy (anonymous):
common diff is 4 not -4 parth .
OpenStudy (anonymous):
|dw:1339346088075:dw|
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