A community for students.
Here's the question you clicked on:
 0 viewing

This Question is Closed

sagarrobo
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1354173877445:dw put k=10 and get answer

geoffb
 2 years ago
Best ResponseYou've already chosen the best response.1\(a_1\) is the result of the equation when you plug your first term into it. Your equation is \(1005k\). The series starts when k = 1, so plug 1 in for k and solve. That's \(a_1\).

sagarrobo
 2 years ago
Best ResponseYou've already chosen the best response.01005k is general term for k series so first term=95

Life
 2 years ago
Best ResponseYou've already chosen the best response.0what about a_n, dw:1354174176642:dw

sagarrobo
 2 years ago
Best ResponseYou've already chosen the best response.0its wrong refer to my solution above in figure

geoffb
 2 years ago
Best ResponseYou've already chosen the best response.1@Life: You need to distinguish between the formula for the sum of the series and the equation you're given (in this case, 1005k). You need to find the value for \(a_{10}\), and then plug that into your series summation formula.

geoffb
 2 years ago
Best ResponseYou've already chosen the best response.1\(a_1 = 95\) (you solved that already). \(a_{n} = a_{10} = 1005(10)\) Plug \(a_{1}\), \(a_{10}\) (which is the *value* you get—*not* 10), and \(n\) into your \(S_{n}\) formula and solve.

Life
 2 years ago
Best ResponseYou've already chosen the best response.0i dont understand how "I" got 95, i never did, but i undetstand everything after that, i thought a1=5

geoffb
 2 years ago
Best ResponseYou've already chosen the best response.1Your equation is \(1005k\), so \(a_{1}\) will be the result you get when you plug 1 in for \(k\).

geoffb
 2 years ago
Best ResponseYou've already chosen the best response.1\(a_{2}\) will be the result you get when you plug in 2 for \(k\). \(a_{3}\) will be the result you get when you plug in 3 for \(k\). ... \(a_{10}\) will be the result you get when you plug in 10 for \(k\).

geoffb
 2 years ago
Best ResponseYou've already chosen the best response.1@Life: Have you ever done computer programming? If so, do you know what a for loop is?

geoffb
 2 years ago
Best ResponseYou've already chosen the best response.1That's all a series is. For each value from what's below sigma to what's above it (in this case, between k=1 and k=10), perform the equation. Once you know each one, add them all together.

Life
 2 years ago
Best ResponseYou've already chosen the best response.0my final answer, s10=725, AM I RIGHT? :)

Life
 2 years ago
Best ResponseYou've already chosen the best response.0sorry for being dumb lol, i understand it now though, so it was all worth it

geoffb
 2 years ago
Best ResponseYou've already chosen the best response.1You're not being dumb. You are showing effort (not just "what's the answer?"), which is appreciated. :)

geoffb
 2 years ago
Best ResponseYou've already chosen the best response.1Good luck with the rest of them. I have faith that you'll get them all. Good night. :)

Life
 2 years ago
Best ResponseYou've already chosen the best response.0I really do appreciate you sticking with me until i understood it. It was probably a good half an hour before I finally understood it, so thanks a bunch
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.