Answer:
Common difference is -7.
Step-by-step explanation:
Given : sequence 56, 49, 42, 35, ...
To find : Find the common difference.
Solution : We have given that 56, 49, 42, 35, ...
By the common difference of an arithmetic sequence is:
d = [tex]a_{2} -a_{1}[/tex]
Where, [tex]a_{1}[/tex] is the first term and [tex]a_{1}[/tex] is the second term.
Then common difference = 49 -56
= -7 .
Therefore,b) common difference is -7.
