Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Math4Life Group Title

Math question!! :O Help!

  • one year ago
  • one year ago

  • This Question is Closed
  1. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    @TehAustin question from a practice quiz

    • one year ago
  2. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Same one?

    • one year ago
  3. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Oh lol well do you know how to do this kind of problem?

    • one year ago
  4. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    click the link

    • one year ago
  5. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Ok@hartnn will you help me again?? lol sorry

    • one year ago
  6. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    @hartnn

    • one year ago
  7. hartnn Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    have u learned matrix multiplication ?

    • one year ago
  8. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    a little of it

    • one year ago
  9. hartnn Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    so can u multiply 2 matrices ??

    • one year ago
  10. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    matrices are my weakness as you can see :/

    • one year ago
  11. hartnn Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    i believe u have choices here too.....else this will be very lengthy problem to solve....

    • one year ago
  12. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok hold on

    • one year ago
  13. hartnn Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    1st element = 15

    • one year ago
  14. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    There

    • one year ago
  15. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    So the first answer?

    • one year ago
  16. hartnn Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    as u can see there is only 1 matrix with 1st element = 15 yes, first.

    • one year ago
  17. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    @hartnn Thanks your a lot of help :)

    • one year ago
  18. hartnn Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    nopes, i would be more happy if u would have understood the method...

    • one year ago
  19. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    explain it to me then

    • one year ago
  20. hartnn Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1347303006293:dw| matrix multiplication is performed as : for 1st element u multiply corresponding elements of 1st row of 1st matrix and 1st column of 2nd matrix and then adding all of them., as shown. so u had BA right ? first row of B was 3,6,3 first column of A was -1,2,2 multiplying and adding, we get : 3*(-1)+6*2+3*2 = 15 thats how i got 15... does this make some sense to u ??

    • one year ago
  21. Math4Life Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes this makes a lot of sense @hartnn I appreciate you explaining it to me!

    • one year ago
    • Attachments:

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
  • 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.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.