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

Respuesta :

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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