bbyremi bbyremi

17-06-2020
Mathematics

contestada

If the first term in an arithmetic sequence is -3 and the tenth term is 15, what is the common difference?
A. d = 2
B. d = 3
C. d = 6
D. d = 12

Respuesta :

pawlossolomon pawlossolomon

06-08-2020

Answer:

2

Step-by-step explanation:

a10=a1+(n-1)d

15=-3+(10-1)d

15+3=9d

d=2

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