Question

if the first term of an AP is -7 and it's common difference is 5,then it's 18 term will be​

Answer 1

Answer:

Given a = -7, d = 5 and n = 18.

Since, nth term = a + (n-1)d

therefore, añ = -7 + (18-1)5

añ = -7 + 17×5

añ = -7 + 85 = 78

Hence the required 18th term is 78.

Thank you and have bright mind!

Please mark me as the Brainiest and like my answer and follow me!

Good morning!

Answer 2

Answer:

78

Step-by-step explanation:

Given first term a = -7

Common difference d = 5

to find out nth term in A.P the equation is given by : a+(n-1)d

So 18th term will be equal to : -7+(18-1)×5 = 78

Thank you