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20 September, 12:15

What is the value of the first term in the following arithmetic sequence?

-9, - 2, 5, 12, ...

9

-9

7

-7

+4
Answers (1)
  1. 20 September, 14:01
    0
    Arithmetic sequence: n + 7

    -9 + 7 = - 2

    -2 + 7 = 5

    5 + 7 = 12 and so on.

    So the answer is 7
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