SOLUTION: find the explicit formula and the 40th term 8,11,14,17...

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Question 387770: find the explicit formula and the 40th term
8,11,14,17...
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,         

Aritmetic Sequence 8,11,14,17...

finding the explicit formula

 a%5Bn%5D=a%5B1%5D%2B%28n-1%29%2Ad  In this example, d = 3

 a%5Bn%5D=+8+%2B%28n-1%29%2A3 

finding the 40th term

 a%5B40%5D=+8+%2B%2839%29%2A3+=+8+%2B+117+=+125