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OpenStudy (anonymous):
Which of the following is the formula for the geometric sequence? 2, 6, 18, 54, ..
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OpenStudy (anonymous):
you know that each term is three times as big as the previous term, so...
OpenStudy (anonymous):
and the base case is 2...
OpenStudy (anonymous):
is the answer an=2(4)^n-1 ?
OpenStudy (anonymous):
@katherine.ok
OpenStudy (anonymous):
2*(3^(n-1))? perhaps.
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OpenStudy (anonymous):
it is timed by 3 not 4. and you basically got the right idea.
OpenStudy (anonymous):
i meant to put three lol i guess i accidently put a 4 but thank you for your help!!
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