MATHEMATICS MIDDLE SCHOOL

Write the equation of the line that passes through the points (-1, -2), (2, 7).

Answers

Answer 1
Answer:

Answer:

y+2=3(x+1)

Step-by-step explanation:

y-y1=m(x-x1)

m=(y2-y1)/(x2-x1)

m=(7-(-2))/(2-(-1))

m=(7+2)/(2+1)

m=9/3

m=3

y-(-2)=3(x-(-1))

y+2=3(x+1)

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Abigail redecorates her house. A scale drawing of her house can be seen below. If each 6 cm on the scale drawing equals 12 ft, what are the actual dimensions of Abigail's house. The scale numbers are 10 cm, 9 cm, 8 cm, 9 cm, and 7 cm.

Answers

6 cm = 12 ft   * I noticed that the scale drawing is 1/2 of the actual dimension of Abigail's house.
So, every scale must be multiplied by 2 to get the actual dimensions.

10 cm = 20 ft
  9 cm = 18 ft
  8 cm = 16 ft
  9 cm = 18 ft
  7 cm = 14 ft

What is the value of x? 6(-3-x)-2x=14

Answers


Let's solve your equation step-by-step:

It's usually easier to rewrite the equation, so let's do that

6(-3-x)-2x = 14

Step 1: Simplify both sides of the equation.

6(-3-x)-2x = 14

Simplify: (Distribute)

(6)(-3)+(6)(-x)+-2x=14

-18+-6x-2x = 14

(-6x + -2x) + (-18) = 14

(Combine like terms)

-8x+-18 = 14

-8x - 18 = 14

Step 2: Add 18 to both sides

-1x-18+18 = 14+18

-8x = 32

Step 3: Divide both sides by -8

-8x/8 = 32/-8

x = -4

Final answer -

x = -4

You can check your work by replacing your x by -4 so your equation will equal 14. Remember, use PEMDAS or your answer will not come out correctly.

  ↑   ↑   ↑ Hope this helps! :D
The equation given in the question has one unknown variable in the form of "x" and only one equation is required to find the value of the unknown variable. So it is absolutely possible to find the exact value of "x".
6(-3 - x) - 2x = 14
-18 - 6x - 2x = 14
-18 - 8x = 14
Multiplying both sides of the equation by -1 we get
8x + 18 = - 14
Dividing both sides by 2 we get
4x + 9 = - 7
4x = - 7 - 9
4x = - 16
x = - 16/4
  = - 4
So the value of "x" comes out to be equal to - 4. I hope the procedure is clear enough for you to understand.

Solve the equation 2(d-6)=3d+5

Answers

2(d-6)=3d+5\n\n2d-12=3d+5\n\n2d-3d=5+12\n\n-d=17\ /\cdot(-1)\n\nd=-17
Hey Justinjames23m,

This is how you do it, step by step:

2(d - 6) = 3d + 5
2d - 12 = 3d + 5
2d = 3d + 17

d = -17

Hope this helps!

Chen :D

The center of rotation is point P. Which describes the rotation of ΔABC to form ΔA'B'C'?A.
clockwise 270°


B.


clockwise 360°


C.
counterclockwise 180°


D.
counterclockwise 90°

Answers

Answer:

C. counterclockwise 180°

Step-by-step explanation:

Hi! A and B are definitely not the right answers, because that’s basically rotating it forward even more. Rotating a polygon in Quadrant II 370 degrees clockwise is like rotating it 99 degrees counterclockwise, because the next 90 degrees you were to rotate it, it would be in it’s original position. The answer is C.

Simplify.

-12x1/6x3+48/3 Pleaseee help me

Answers

First, let's look at the first two nomials. -12 / 6 = -2 and x / x3 = 1 / x2

Since the bigger variable is on the bottom, when simplifying it stays on the bottom.

We get -2/ x2 + 16.

48/3 = 16.

Hope this helped!

5 miles equal how many yards

Answers

8,800 yards. theres 1,760 yards in one mile, so you multiply it by five. but I'm assuming you already knew that.
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