SOLUTION: determine the common difference, the nth term and the 100th term for the arithmetic sequence 12,9,6,3

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Question 442504: determine the common difference, the nth term and the 100th term for the arithmetic sequence 12,9,6,3
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, Previously Posted

arithmetic sequence

12,9,6,3,...

  d = -3

a%5Bn%5D=a%5B1%5D%2B%28n-1%29%2Ad

a%5Bn%5D=12%2B%28n-1%29%2A%28-3%29

a%5B100%5D=12%2B%2899%29%2A%28-3%29+=+highlight%28-285%29









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