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

mbloodworth

By multiplying matrices, calculate the matrix for total dollar volume of sales. I know how to multiply matrices, but this question makes absolutely no sense. What do I multiply?

  • 9 months ago
  • 9 months ago

  • This Question is Closed
  1. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    • 9 months ago
    1 Attachment
  2. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    linear combination of columns cr*C1+cp*C2

    • 9 months ago
  3. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    But if you did that, how would the determinant be found? That makes no sense how that can be found if it is in the rows and columns like that. So in thousands, would the first be 10000,000?

    • 9 months ago
  4. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    that is not determinant

    • 9 months ago
  5. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1372136163766:dw|

    • 9 months ago
  6. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    Im sorry, I have been working on a ton of stuff. It's past midnight my time. How can you find that?

    • 9 months ago
  7. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    Math is not my forte. As I am sure you can tell, haha.

    • 9 months ago
  8. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    the result is only the sum of cr*first column and cp*second column

    • 9 months ago
  9. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    Right, so what would that be? In thousands? Because that is what it is listed as in the problem copied

    • 9 months ago
  10. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1372136309101:dw|

    • 9 months ago
  11. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1372136488612:dw|

    • 9 months ago
  12. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    now just add them

    • 9 months ago
  13. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    okay. so what I am going to do (just to make sure I understand the drawings) 1. 500*200, 500*15, 500*5 2. 600*30, 600*5, 600*2 Then add the results of 500*2 and 600*30 together, and so on? Is that correct?

    • 9 months ago
  14. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    Sorry, 20

    • 9 months ago
  15. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    yes

    • 9 months ago
  16. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    Awesome. Thanks so much!!

    • 9 months ago
  17. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    multiplication by left is linear combination of columns, and by right is linear combination of rows

    • 9 months ago
  18. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    I'm sorry I don't quite understand that. Can you put in smaller terms? Like I said, math is not my forte.

    • 9 months ago
  19. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1372136788063:dw|

    • 9 months ago
  20. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1372137032274:dw|

    • 9 months ago
  21. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    okay question, on logarithms... 7^(3x - 1) = 5^(x - 1) what is x?

    • 9 months ago
  22. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1372138198267:dw|

    • 9 months ago
  23. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    so would that be 12.33, -3.09, or .08?

    • 9 months ago
  24. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    lol, let me see

    • 9 months ago
  25. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    you're awesome lol

    • 9 months ago
  26. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    ~0.08

    • 9 months ago
  27. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    thanks a billion

    • 9 months ago
  28. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    yw

    • 9 months ago
  29. mbloodworth
    Best Response
    You've already chosen the best response.
    Medals 0

    i wish i could pay you to help me lol

    • 9 months ago
  30. RaphaelFilgueiras
    Best Response
    You've already chosen the best response.
    Medals 1

    i wish it too lol

    • 9 months 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.