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son4ous [18]
3 years ago
7

The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference.

Mathematics
2 answers:
Harrizon [31]3 years ago
8 0

Answer:

d = 2.

Step-by-step explanation:

First term = -5

10th term = -5 + 9d    where d is the common difference, so

-5 + 9d = 13

9d = 18

d = 2.

il63 [147K]3 years ago
3 0

Answer:

2

Step-by-step explanation:

If the common difference is d we can write:

-5 + 9d = 13

9d = 18

d = 2

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