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OpenStudy (anonymous):
find s25 for the following arithmetic sequence -7, -2, 3, 8,...
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OpenStudy (anonymous):
What is the pattern?
OpenStudy (espex):
You need to find the difference (d) between the terms. Once you have that you can use the formula, \[a_n=a_1+d(n-1)\] Where n is the number term, d is the difference between terms, a_1 is the first term in the series, and a_n is the value of the term you're looking for.
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