anonymous
  • anonymous
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?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
linear combination of columns cr*C1+cp*C2
anonymous
  • anonymous
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?

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anonymous
  • anonymous
that is not determinant
anonymous
  • anonymous
|dw:1372136163766:dw|
anonymous
  • anonymous
Im sorry, I have been working on a ton of stuff. It's past midnight my time. How can you find that?
anonymous
  • anonymous
Math is not my forte. As I am sure you can tell, haha.
anonymous
  • anonymous
the result is only the sum of cr*first column and cp*second column
anonymous
  • anonymous
Right, so what would that be? In thousands? Because that is what it is listed as in the problem copied
anonymous
  • anonymous
|dw:1372136309101:dw|
anonymous
  • anonymous
|dw:1372136488612:dw|
anonymous
  • anonymous
now just add them
anonymous
  • anonymous
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?
anonymous
  • anonymous
Sorry, 20
anonymous
  • anonymous
yes
anonymous
  • anonymous
Awesome. Thanks so much!!
anonymous
  • anonymous
multiplication by left is linear combination of columns, and by right is linear combination of rows
anonymous
  • anonymous
I'm sorry I don't quite understand that. Can you put in smaller terms? Like I said, math is not my forte.
anonymous
  • anonymous
|dw:1372136788063:dw|
anonymous
  • anonymous
|dw:1372137032274:dw|
anonymous
  • anonymous
okay question, on logarithms... 7^(3x - 1) = 5^(x - 1) what is x?
anonymous
  • anonymous
|dw:1372138198267:dw|
anonymous
  • anonymous
so would that be 12.33, -3.09, or .08?
anonymous
  • anonymous
lol, let me see
anonymous
  • anonymous
you're awesome lol
anonymous
  • anonymous
~0.08
anonymous
  • anonymous
thanks a billion
anonymous
  • anonymous
yw
anonymous
  • anonymous
i wish i could pay you to help me lol
anonymous
  • anonymous
i wish it too lol

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