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Mathematics 6 Online
OpenStudy (anonymous):

A geometric sequence is defined recursively by a_n = 4a_n-1. The 10th term of the sequence is a_10 = 3.5. What is a_13?

OpenStudy (amistre64):

use a10 to find a11 use a11 to find a12 use a12 to find a13

OpenStudy (amistre64):

each next term is defined to be 4 times the previous term .....

OpenStudy (anonymous):

Oh, thanks.

OpenStudy (amistre64):

yep

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