Answer: -13
Explanation:
Concept:
Here, we need to know how arithmetic sequences work.
An arithmetic sequence is a sequence or progression of numbers where the difference between each number is the same (or constant).
In simple words, you add or subtract the same number to get the next term in the sequence.
Solve:
{2, -1, -4, -7, -10}
2 - (-1) = 3
-1 - (-4) = 3
-4 - (-7) = 3
-7 - (-10) = 3
As we can see from above, the constant between the sequence is subtraction 3 or -3.
Therefore, in order to get the next term, we subtract 3 from the last term given.
-10 - 3 = -13
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