andrestorres226
andrestorres226 andrestorres226
  • 10-06-2019
  • Mathematics
contestada

Select the correct answer.
Which system of equations can be represented by this matrix?

Select the correct answer Which system of equations can be represented by this matrix class=

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lolo6958
lolo6958 lolo6958
  • 10-06-2019
The answer is A.

You put the numbers in order of the letters and if a letter is missing you put 0
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ikarus ikarus
  • 03-07-2019

Answer:

A)  x + 2y = 4

3x + 4y -9z = 2

-x + 7z = 1

Step-by-step explanation:

The matrix form is

x y z  

1 2 0    4

3 4 -9   2

-1 0 7    1

Here 0 represents no term in system.

So, the following system represents the above matrix.

x + 2y + 0z = 4  => x + 2y = 4

3x + 4y -9z = 2

-x + 0y + 7z = 1  => -x + 7z = 1

Therefore, the answer is A.

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