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OpenStudy (anonymous):
What is the 8th term of the geometric sequence where a1 = 625 and a3 = 25?
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OpenStudy (campbell_st):
find the common ratio.... a2/625 = 25/a2 then the common ratio is 1/5 use r = 1/5 a = 625 \[T _{n} = ar^{n-1}\]
OpenStudy (campbell_st):
oops a = 625
OpenStudy (anonymous):
Thank you so much! (:
OpenStudy (anonymous):
Is it 0.04?
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