Question

Please show step by step

Answer 1

15th term of the sequence is 36

Explanation:

Given in the question,

a₁ = First term = -20

d = common difference = 4

Expression for the nth term of an arithmetic sequence is,

`T_n=a_1+(n-1)d`

Here, n = number or term

We have to calculate 15th term of the sequence,

`T_(15)=-20+(15-1)(4)`

= -20 + 56

= 36

Therefore, 15th term of the sequence is 36.