3 years ago

A. y = - 1/4x +9

1 answer:

6 0

It's B= 1/4x+6 because I solve it

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ANEK [815]

The answer is A, the denominator should be 18.

8 0

4 years ago

Snowcat [4.5K]

We are given a system of equations,

$\begin{cases}-x+2y=0\\y=-2\\ \end{cases}$

This will translate into a 2x2 matrix of coefficients (because 2 equations and 2 unknowns),

$\begin{bmatrix}-1&2\\0&1\\ \end{bmatrix}$

The matrix will then be applied to the vector (lower dimensions on top),

$\begin{bmatrix}x\\y\\ \end{bmatrix}$

And the result vector will be whats on the other side of equals sign,

$\begin{bmatrix}0\\-2\\ \end{bmatrix}$

So to put everything together,

$\begin{bmatrix}-1&2\\0&1\\ \end{bmatrix}\begin{bmatrix}x\\y\\ \end{bmatrix}=\begin{bmatrix}0\\-2\\ \end{bmatrix}$

Hope this helps :)

6 0

3 years ago

bixtya [17]

Answer:

Step-by-step explanation:

7/18-2/9=7/18-4/18=3/18=1/6

3 0

3 years ago

dimulka [17.4K]

I think its 721.6666667

4 0

3 years ago

Rina8888 [55]

37 ° C, because it's going 11 ° C every 15 min.

3 0

3 years ago