Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
← 55 members online
 0 viewing
julieefang
Group Title
What is the sum of a 22term arithmetic sequence where the first term is 56 and the last term is 28?
 one year ago
 one year ago
julieefang Group Title
What is the sum of a 22term arithmetic sequence where the first term is 56 and the last term is 28?
 one year ago
 one year ago

This Question is Closed

ghazi Group TitleBest ResponseYou've already chosen the best response.1
\[S _{n}=\frac{ n }{ 2 }[2a+(n1)d]\]
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
or you can use \[S _{n}=\frac{ n }{ 2 } (a _{1}+a _{n})\]
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
n=22, a1=56 and an=28 put the values in, in the second formula and you will have the sum
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.