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What's the 13th term in the arithmetic sequence

What's the 13th term in the arithmetic sequence
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What's the 13th term in the arithmetic sequence

What's the 13th term in the arithmetic sequence-example-1
User Xufeng
by
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1 Answer

2 votes
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

User Krishnakumar
by
8.0k points
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