Question

Choose the value of the coefficient determinant (D) in the following system. 2x – 5y = –2 x – 3y = 0

Answer 1

2x-5y=-2
x-3y=0

So the coefficient matrix is:\[\begin{bmatrix}
2&-5\\1&-3
\end{bmatrix}\]So, the determinant is \((2\cdot-3)-(1\cdot-5)\).

Answer 2

thank you! can you possibly help with this one too?

Choose the value of the y determinant (Dy) in the following system.

2x + 5y = 7
3x + 5y = 3

Answer 3

After a question has been answered it's best to award a Best Response medal, and then close the question. Then you can open a new question, so that people know you have a new question. :)

Answer 4

how do you open a new question?

Answer 5

im new to this website

Answer 6

First, you have to close this question. At the top of this page there should be a button that says "Close Question"