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Find the 12th term of the sequence -15,-9,-3, 3
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Find the 12th term of the sequence -15,-9,-3, 3

User MyDogTom
by
8.5k points

1 Answer

3 votes
first term (a) = -15
common difference(d)= -9-(-15)
= -9+15=6
So,
12th term(a12)= a +(n-1)d
= -15+(12-1)×6
= -15 + 11×6
= -15+66
= 51
User Michael Piendl
by
7.5k points
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