The first term of A. P is 5 and the last term is 45 and the sum of all term is 400. find the number of terms and the Common difference. help me plz ​

--- Number of terms

--- Common difference

Explanation:

Given

--- first term

Required

Determine the number of terms (n) and the common difference (d)

The sum of n terms of an AP is:

This gives:

Divide both sides by 25

The nth term of an AP is:

This gives:

Subtract 5 from both sides

Divide both sides by 15

the answer is a because the astrophel does more and sidney goes to the astrophel more than stella.

question: according to the lecture, the primary difference between men’s and women’s communication is how much each gender communicates. select the best answer from the choices provided t f

answer: f

explanation: because females develop understanding

question answered by

(jacemorris04)