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17-12-2016
Mathematics

contestada

HELP!!!

27. Tell whether the sequence is arithmetic. If it is, what is the common difference?

-15, -9, -3, 3, . . .

A. yes; 3

B. yes; 5

C. yes; 6

D. no

Respuesta :

Аноним Аноним

17-12-2016

I hope this helps you

-15+6= -9

-9+6= -3

-3+6=3

add 6

Answer Link

18-12-2016

The sequence is arithmetic, and the common difference is 6. You can use the formula also,

[tex]a_n=a_0+d(n-1)[/tex]

Answer Link

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