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3 years ago

What value of x makes the equation true?

Mathematics

1 answer:

Rasek [7]3 years ago

3 0

<em>Greetings from Brasil...</em>

Let's add all the values on one side and make it equal to the sum of all the other values on the other side

(- X) + (- X) + (- X) + (- X) + (- X) + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = X + X + X + (- 1) + (- 1) + (- 1) + (- 1) + (- 1) + (- 1) + (- 1) + (- 1)

- 5X + 12 = 3X - 8

- 5X - 3X = - 8 - 12

- 8X = - 20 x(- 1)

8X = 20

X = 20/8

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3 years ago

Read 2 more answers

Dilate line f by a scale factor of 2 with the center of dilation at the origin to create line f. Where are points A' and B' loca

V125BC [204]

Answer:

Option A

Step-by-step explanation:

We are given that

Scale factor=2

Center of dilation=(0,0)

Point A(0,2) and point B (2,0).

Slope of line f= $\frac{y_2-y_1}{x_2-x_1}$

Substitute the values

Slope of line f= $\frac{0-2}{2-0}=-1$

Distance between A and Origin (0,0) is given by

$OA=\sqrt{(0-0)^2+(0-2)^2}=2 units$

Using distance formula

$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

OB= $\sqrt{(0-2)^2+(0-0)^2}=2 units$

Length of OA'=2OA=2(2)=4 units

Length of OB'=2(OB)=2(2)=4 units

x-intercept of line f' at x=4

y-intercept of line f' at y=4

Therefore, the points A' and B' are given by

(0,4) and (4,0)

Slope of line f'= $\frac{0-4}{4-0}=-1$

Slope of line f and f' are equal.Therefore, lines f and f' are parallel.

Option A is true.

4 0

3 years ago

Mr. Clark has a tank that holds 55,000 milliliters of gas. He poured some gas into three containers equally. There were 19,864 m

Temka [501]

Answer:

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Step-by-step explanation:

The tank holds 55,000ml. Mr. Clark poured some gas into 3 container, and at the end there the tank had 19,864. To find how much gas was poured out of the tank it is the same as asking how much gas he poured in the 3 containers, all together. We have to find the difference, subtraction:

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2 years ago

How does a balance sheet work?

Phoenix [80]

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8 0

2 years ago

Please help explanation if possible

Nookie1986 [14]

Answer:

y=-3x+5

Step-by-step explanation:

concepts: y=mx+b is slope intercept equation formula

m=slope

b= y intercept

Therefore we need to find the slope and y intercept

first find slope

m= $\frac{y2-y1}{x2-x1}$

let y2 be 2

let y1 be -4

let x2 be 1

let x1 be 3

$\frac{2-(--4)}{1-3}$

6/-2 = -3

m=-3

slope is -3

y= -3x+ b

we need find y intercept now

just plug in (1,2) into that equation

2=-3(1)+b

b=5

y=-3x+5

5 0

2 years ago