callierichard callierichard
  • 18-05-2021
  • Mathematics
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Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form. 3,12,21

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retirEEd
retirEEd retirEEd
  • 18-05-2021

Step-by-step explanation:  5 18 9 55

3             + 9   = 12

12           + 9   = 21

21           + 9   = 30

30

arithmetic or geometric

common difference / ratio    the difference is 9

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