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Mathematics 15 Online
OpenStudy (anonymous):

Which of the following is the formula for the geometric sequence? 320, 80, 20, 5,... an = 320(1/4)n-1 an = 320(4)n-1--- an = 4(320)n-1 I think its the second one?

OpenStudy (butterflydreamer):

geometric series: |dw:1434671631437:dw|

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