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Mathematics 20 Online
OpenStudy (anonymous):

what is the sum of an 8-term geometric series if the first term is -11, and the last term is 180,224, and the common ratio is -4?

OpenStudy (anonymous):

answers- -143,231 -36,047 144,177

OpenStudy (anonymous):

716,144 (mb left this choice out lol)

OpenStudy (anonymous):

@Jadeishere I just saw your working in a quadratic formula equation maybe you can help with this one :o <3

OpenStudy (jadeishere):

Eeks, i'm not sure >.< I'm not too terribly smart

OpenStudy (anonymous):

its alright :o @Jadeishere

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