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Mathematics 8 Online
OpenStudy (anonymous):

write an equation for the nth term of the geometric sequence. -9, -27, -81,...an

OpenStudy (anonymous):

to get the nth term of this geometric sequence use the formula: a_n = a_0 * r^(n-1) where a_0 is your first term and r is the common ratio. do you know what the common ratio is in your sequence?

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