A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Write the sum using summation notation, assuming the suggested pattern continues.
4 + 5 + 14 + 23 + ... + 131
anonymous
 one year ago
Write the sum using summation notation, assuming the suggested pattern continues. 4 + 5 + 14 + 23 + ... + 131

This Question is Closed

freckles
 one year ago
Best ResponseYou've already chosen the best response.1what it is the common difference that is what are the following: 5(4)=? 145=? 2314=?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1right and we know a arithmetic sequence is of the form: \[a_n=a_1+d(n1) \\ \text{ where } a_1 \text{ is first term } \\ \text{ and } d \text{ is common difference } \\ \text{ your answer will be of the form } \sum_{i=1}^{n} a_i=\sum_{i=1}^n [a_1+d(i1)]\] so the only thing left to figure out is the n for which you get the last term 131

freckles
 one year ago
Best ResponseYou've already chosen the best response.1for what n is a_n =131 well just solve: \[131=a_1+d(n1)\] where you found d to be 9

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait so what do i do next? @freckles

freckles
 one year ago
Best ResponseYou've already chosen the best response.1because that is basically the last step besides to plug into the final form

freckles
 one year ago
Best ResponseYou've already chosen the best response.1ok well do you still need any help?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1I'm not sure if that means you are having a problem solving the equation I gave you or not
Ask your own question
Sign UpFind more explanations on OpenStudy
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.