Question

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

2,7,13,20,...

no
yes: 2
yes; 6
yes; 5

Answer 1

not arithmetic

Explanation:

An arithmetic sequence has a common difference between consecutive terms.

7 - 2 = 5

13 - 7 = 6

20 - 13 = 7

The difference between consecutive terms is not equal , then

The sequence is not arithmetic