11-01-2017
Mathematics

contestada

11,8,5,2… what is the 100th term

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MissPhiladelphia MissPhiladelphia

19-01-2017

In order to solve for a nth term in an arithmetic sequence, we use the formula written as:

an = a1 + (n-1)d

where an is the nth term, a1 is the first value in the sequence, n is the term position and d is the common difference.

First, we need to calculate for d from the given values above.
d=11-8=3

at n=100
an = a1 + (n-1)d
a100 = 11 + (100-1)3
a100 = 308

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