WazleeHausecarl WazleeHausecarl
  • 12-01-2017
  • Mathematics
contestada

If the system below were written as a matrix equation, by which matrix could you multiply both sides to obtain a solution?
4x + 6y = 24 5x + 8y = 40

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Аноним Аноним
  • 17-01-2017
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Below are the choices:

A. 
[8 -6] 
[-5 4] 
B. 
[4 -3] 
[-2.5 2] 
C. 
[-4 5] 
[6 -8] 
D. 
[-2 2.5] 
[3 -4]

B because it is the inverse of 
(4 6) 
(5 8) 

Check 
(4.0 -3)(4 6) = (1 0) 
(-2.5 2)(5 8) = (0 1)
Answer Link

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