Ask question

Ask question

All categories

3 years ago

11

-2x - 2y + 2z = 16 4x - y - Z = -19 5x + y - 3z = -30

1 answer:

svetlana [45]3 years ago

5 0

Answer: 1. y=-x+z-8

2. y=-Z+4x+19

3. y=-5x+3z-30

You might be interested in

For what value of x is the rational expression below equal to zero?x-8/x+8

natali 33 [55]

I think is the letter D-1

3 0

3 years ago

Read 2 more answers

The point slope form of the equation of the line that passes through (-5-1) and (10.-7) is

Natalka [10]

Answer:

The standard form of the equation for this line can be:

l: 2x + 5y = -15.

Step-by-step explanation:

Start by finding the slope of this line.

For a line that goes through the two points $(x_0, y_0)$ and $(x_1, y_1)$ ,

$\displaystyle \text{Slope} = \frac{y_{1} - y_{0}}{x_{1} - x_{0}}$ .

For this line,

$\displaystyle \text{Slope} = \frac{(-1) - (-7)}{(-5) - 10} = -\frac{2}{5}$ .

Find the slope-point form of this line's equation using

$\displaystyle \text{Slope} = -\frac{2}{5}$ , and
The point $(-5, -1)$ (using the point $(10, -7)$ should also work.)

The slope-point form of the equation of a line

with slope $m$ and
point $(x_{0}, y_{0})$

should be $l:\; y - y_{0} = m(x - x_0)$ .

For this line,

$\displaystyle m = -\frac{2}{5}$ , and
$x_0 = -5$ , and
$y_0 = -1$ .

The equation in slope-point form will be

$\displaystyle l:\; y - (-1) = -\frac{2}{5}(x - (-5))$ .

The standard form of the equation of a line in a cartesian plane is

$l: \; ax + by = c$

where

$a$ , $b$ , and $c$ are integers. $a \ge 0$ .

Multiply both sides of the slope-point form equation of this line by $5$ :

$l:\; 5 y + 5 = -2x -10$ .

Add $(2x-5)$ to both sides of the equation:

$l: \; 2x + 5y = -15$ .

Therefore, the equation of this line in standard form is $l: \; 2x + 5y = -15$ .

7 0

3 years ago

-1/2x+12=-16 1/2 help<br> Plz I need it quick

Leokris [45]

Subtract 12 from both sides
$- \frac{1}{2} x+12-12=-16 \frac{1}{2} -12$ $- \frac{1}{2}x=-28 \frac{1}{2}$
Divide by - $\frac{1}{2}$ which means multiply by -2
$x=-28 \frac{1}{2} *-2=57$

Hope that helps

7 0

4 years ago

If the pond has a radius of 6.5 ft how much fencing will he need

andre [41]

6.5 times 2 then that time pi or 3.14

5 0

3 years ago

How to solve (s + 5)(s - 5)

Bas_tet [7]

Answer:s^2-25

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers