The first two terms in a sequence are 8 and 11. What is the next value if this sequence is arithmetic?

14

Step-by-step explanation:

From the question we are given the first term 8, second term 11 and we are to find the third term.

Using the formula:Tn=a + (n-1) d

Where a=first term=8

n=number of terms = 3

d = difference between terms (second term - first term) = 11-8=3

T3=8 + (3-1) 3

=8+2 (3)

=8+6

The next term = 14