Register

The first term of an arithmetic sequence is -5, and the twelfth term is 17. Find the common difference.

The first term of an arithmetic sequence is -5, and the twelfth term is 17. Find the common difference.
asked 121k views
3 votes
The first term of an arithmetic sequence is -5, and the twelfth term is 17. Find the common difference.

asked
User Jmasterx
by
7.7k points

1 Answer

5 votes


a_1=-5;\ a_(12)=17\\\\a_(12)-a_1=11d\\\\11d=17-(-5)\\\\11d=17+5\\\\11d=22\ \ \ |:11\\\\d=2

Answer: The common difference is equal 2.

answered
User GReX
by
8.4k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.

Categories

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Link Copied!