Homework Help: math

Posted by Meg on Wednesday, May 23, 2012 at 2:43pm.

Find n if t(n) is approximately 10,832 in the geometric sequence with first term 83 and a common ration 1.07

math - MathMate, Wednesday, May 23, 2012 at 3:00pm
You're looking for:
83*1.07^n=10832
1.07^n=10832/83=130.506
take log and solve for n
n log(1.07)=log(130.506)
n= 71.99995 = 72 since 10832 is approximate.

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