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Mathematics 14 Online
OpenStudy (anonymous):

What is the 9th term of the geometric sequence where a1 = –7 and a6 = –7,168? Please help –327,680 –393,216 –458,752 –524,288

OpenStudy (anonymous):

is it C?

OpenStudy (anonymous):

@baziham

OpenStudy (anonymous):

plz

OpenStudy (anonymous):

sorry, i dont understand

OpenStudy (anonymous):

i dont understand the formula i need to use

OpenStudy (anonymous):

in geometric you have: a1, a1*q, a1*q^2,... ai=a1*q^(i-1)

OpenStudy (anonymous):

just put i=6 and the obtain q then set i=9 and obtain a9 ok

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