SOLUTION: Find the 8th term in the following geometric Sequence 28,14,7,3.5

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Question 448474: Find the 8th term in the following geometric Sequence 28,14,7,3.5
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
geometric Sequence {28,14,7,3.5,...} r = 1/2
a%5Bn%5D+=+a%5B1%5D%2Ar%5E%28n-1%29
a%5B8%5D+=+28%2A%28.5%29%5E%287%29+=+.21875+