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Algebra 7 Online
OpenStudy (anonymous):

Find S8 for the series -2 + -10 + -50 + -250 +…

OpenStudy (anonymous):

do you know the formula for geometric sequence?

OpenStudy (anonymous):

no... i need that?

OpenStudy (anonymous):

yes, it's much easier... wait, you're looking for the sum of the series??

OpenStudy (anonymous):

i think... im not sure thats why im asking around

OpenStudy (anonymous):

|dw:1377298454519:dw| do you know what's your ratio?

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