azarco7879 azarco7879

12-02-2018
Mathematics

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What's the 13th term in the arithmetic sequence

Whats the 13th term in the arithmetic sequence class=

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jimthompson5910 jimthompson5910

12-02-2018

Replace n with 13 and simplify

an = 84+(n-1)*(-6)
a13 = 84+(13-1)*(-6)
a13 = 84+(12)*(-6)
a13 = 84+(-72)
a13 = 84-72
a13 = 12

Answer: Choice A) 12

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