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OpenStudy (anonymous):
What is the 6th term of the geometric sequence where a1 = 625 and a3 = 25?
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OpenStudy (anonymous):
is a1 the 1st term and a3 the 3rd term?
OpenStudy (anonymous):
Yes.
OpenStudy (anonymous):
tn=ar^n-1 t3=(625)(r^3-1) 25=625r^2 1/25 = r^2 1/5=r tn=ar^n-1 t6= (625)(1/5 ^5) t6=625x 1/3125 t6=0.2
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