38.8k views
1 vote
Help please I need it now!

Help please I need it now!-example-1

1 Answer

12 votes

Answer:
\sum^(7)_(n=1) (-2+9n)

Explanation:

This is an arithmetic series with first term 7 and common difference 9, so the general formula for the nth term of the sequence is
7+9(n-1)=7+9n-9=-2+9n.

The sequence has 7 terms, so the sigma notation is:


\sum^(7)_(n=1) (-2+9n)

User Nasaralla
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories