Find the 20th term of the following sequence. -6,-4,-2,0,

Answer 1

April:

a₁ = -6

d = -4-(-6) = 2.

The formula for the nth term of an arithmetic sequence is

a_n = a₁ + (n-1)*d. Use n=20, a₁=-6, d =2

Answer 2

Hi. For sequences, use the formula a1+ d(n-1).

a1 is the first number

d is the difference between numbers

n is the number of terms

So -6 + 2(20-1) = -6 + 2(19) = -6 + 38 = 32 (answer)