Asked by Lea

what is the 6th term of the geometric sequence 2000, 800, 320,..../
Answered by JJ
Start by taking the ratio of 800/2000
reduce it to 2/5 or .4

multiply 800 times .4 = 320

next multiply 320 times .4
and continue until you get to the 6th term.
Answered by Reiny
you could do that, or just use the formula for the
nth term of a GS, which is ar^(n-1)

6th term = 2000(.4)^5 = 20.48
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