The common difference in the arithmetic sequence is -7.
Given that,
Sequence; 19, 12, 5, -2
The sequence is arithmetic.
We have to determine,
The common difference of the sequence.
According to the question,
The common difference in the arithmetic progression is given by the following formula;
Common difference = second term - first term
Then,
The common difference between the terms is,
Common difference between first and second term = 12 - 19 = -7
Common difference between second and third term = 5 - 12 = -7
Common difference between third and fourth term = (-2) - 5 = -7
Therefore, The common difference in the arithmetic sequence is -7.
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https://brainly.com/question/2000888
