Verified Answer :

texaschic101

28,33,38,43

the common difference can be found by subtracting the first term from the second term.....33 - 28 = 5....so the common difference (d) = 5

an = a1 + (n - 1) d
n = the term u want to find = 11
a1 = first term = 28
d = common difference = 5
now we sub
a11 = 28 + (11 - 1) 5
a11 = 28 + 10 * 5
a11 = 28 + 50
a11 = 78

Solutions 

We are given the Arithmetic sequence -
A1,A2,A3,A4
28,33,38,43

As we know the common difference can be found by subtracting the first term from the second term. 

33 - 28 = 5 ((the common difference (d) = 5))

\(an = a1 + (n - 1) * d\)

The variable n = the term you want to find which is = 11

\(a1 = 1 term = 28\)

d = difference = 5

Subtraction 

\(a11 = 28 + (11 - 1) * 5 a11 = 28 + 10 * 5 a11 = 28 + 50 a11 = 78\)

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