#### Answer

There is a common difference of $6$ therefore the given sequence is arithmetic.

#### Work Step by Step

The given terms can be terms of an arithmetic sequence if there is a common difference among consecutive terms.
Determine the difference between each pair of consecutive terms to obtain:
$17-11=6
\\23-17=6
\\29-23=6$
There is a common difference of $6$ therefore the given sequence is arithmetic.