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Determine if the sequence is arithimetic if it is find the common difference . 1. 30 , 27, 24, 21 A. d=1 B. d=-1 C. d=-3 D.d=3
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@cwrw238
subtract 21 by 24, then 24 by 27, what do you get? @EuniceOB97
What is 30 - 27, 27 - 24, and 24 - 21 ?
okay 3
Correct.
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@101 thank you
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