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20 August, 01:50

16

Find the common difference of the arithmetic sequence.

9, 13, 17, 21, ...

+4
Answers (2)
  1. 20 August, 02:09
    0
    The answer is 4 because it adds 4 to each one.
  2. 20 August, 02:12
    0
    The common difference would be 4, or d=4 depending how your teacher wants it written
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