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Mathematics 20 Online
OpenStudy (anonymous):

The first term of an arithmetic sequence is 4 and the fifth term is 16. What is the nth term of the sequence?

OpenStudy (anonymous):

The from the 1st to 5th term is 4 terms. Over the 4 terms, change is 12. This means that each subsequent term is 12/4 or 3 greater than the previous term. The first term in the sequence is 1+3, the second term is 1+3+3 or 1+3*2. You can extend this to n.

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