3 years ago

Will mark brainliest

1 answer:

3 0

$7x^2+0x-112=0\\a=7\\b=0\\c=-112\\$

x=4,-4

You might be interested in

Murrr4er [49]

C is the answer because it is

5 0

3 years ago

ale4655 [162]

I don’t know sorry!!!

8 0

3 years ago

Andreyy89

Answer:

Multiply row 1 by $\frac{1}{2}$ .

Step-by-step explanation:

The augmented matrix of the system of linear equation is described below:

$\left[\begin{array}{cccc}2&1&-1&-8\\0&2&3&-6\\-\frac{1}{2} &1&1&-4\end{array}\right]$

Where $a_{11} = 2$ , if we need to create $a_{11} = 1$ , we need to multiply row 1 by $\frac{1}{2}$ , that is to say:

$\left[\begin{array}{cccc}1&\frac{1}{2} &-\frac{1}{2} &-4\\0&2&3&-6\\-\frac{1}{2} &1&1&-4\end{array}\right]$

Hence, the correct answer is: Multiply row 1 by $\frac{1}{2}$ .

5 0

3 years ago

UNO [17]

Answer:

at least 51,569 blocks ( same as 51569)

Step-by-step explanation:

973 * 53

3 0

3 years ago

Ann [662]

Answer:

450/3

Step-by-step explanation:

4 0

3 years ago