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OpenStudy (anonymous):
find the rule of : 5,15,45,......,3645
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OpenStudy (anonymous):
Multiply 5 by 3 = 15. Multiply 15 by 3 = 45. Multiply 45 by 3 = 135. Multiply 135 by 3 = 405. Multiply 405 by 3 = 1215. Multiply 1215 by 3 = 3646. So multiply your final number by 3.
OpenStudy (anonymous):
but how would i write that as an equation? i have to use sigma notation to find the sum of the terms
OpenStudy (anonymous):
Maybe this is it?
OpenStudy (anonymous):
it's getting close! haha i think that's the right idea...thanks for the help!
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