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Mathematics 15 Online
OpenStudy (anonymous):

Write an equation for the nth term of the given geometric sequence. 8, 72, 648, ..., an

OpenStudy (xapproachesinfinity):

What is the ratio and the first term of this geometric sequence

OpenStudy (anonymous):

first term is 8. Having a hard time finding the ratio.

OpenStudy (xapproachesinfinity):

That true. Okay what happened from 8 to 72

OpenStudy (anonymous):

+64

OpenStudy (xapproachesinfinity):

Can't we say that we multiplied 8 by 9 to get 72 and 72 by 9 gain to get 648.

OpenStudy (anonymous):

yes

OpenStudy (xapproachesinfinity):

So what is the common ration?

OpenStudy (anonymous):

9

OpenStudy (xapproachesinfinity):

Ration?

OpenStudy (xapproachesinfinity):

Yes sorry for my typing the phone lol

OpenStudy (anonymous):

its okay lol

OpenStudy (xapproachesinfinity):

So we got the ratio and the first term can we write the general term now

OpenStudy (anonymous):

okay

OpenStudy (xapproachesinfinity):

Okay can you do it now

OpenStudy (xapproachesinfinity):

Do you know the equation for the general term

OpenStudy (anonymous):

yes thank you!

OpenStudy (xapproachesinfinity):

OK, good and anytime.

OpenStudy (anonymous):

what would the n term be?

OpenStudy (anonymous):

|dw:1406696768932:dw|

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