#### Answer

This is not an arithmetic sequence.

#### Work Step by Step

The difference between consecutive terms is constant in an arithmetic sequence.
The sequence: 4, 4.4, 4.44, 4.444, ...
Finding the pattern:
Difference between 1st and 2nd term:
2nd term-1st term=Difference
4.4-4= 0.4
Difference between 2nd and 3rd term:
3rd term-2nd term=Difference
4.44-4.4= 0.04
Difference between 3rd and 4th term:
4th term-3rd term=Difference
4.444-4.44= 0.004
The common difference is not constant and thus this is not an arithmetic sequence.