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Zepler [3.9K]
3 years ago
12

What is the image of the point (-7, 4) after a rotation of 180° counterclockwise about the origin?​

Mathematics
1 answer:
tia_tia [17]3 years ago
7 0

Answer: (7, -4)

Concept:

For each rotation angle, there is a specified rule that could be applied. Please refer to the attachment below for the list of rotation rules.

Solve:

Given point = (-7, 4)

Given rotation rule = (x , y) ⇒ (-x, -y)

(-7, 4) ⇒ (7, -4)

Hope this helps!! :)

Please let me know if you have any questions

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What is the slope of the line that passes through (3, 14) and (7, 9)?
konstantin123 [22]

Answer:

m=\frac{-5}{4}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (3, 14)

Point (7, 9)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute [Slope Formula]:                    m=\frac{9-14}{7-3}
  2. Subtract:                                                   m=\frac{-5}{4}
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3 years ago
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Henry needs 2 pints of red paint and 3 pints of yellow
Artemon [7]

Answer:

15

Step-by-step explanation:

3x3=9

so therefore you need to multiply 2 by 3=6

9+6=15

6 0
3 years ago
If x = 4 centimeters, y = 4 centimeters, and z = 6 centimeters, what is the area of the object?
Rom4ik [11]

Answer:

the answer would be 12

Step-by-step explanation:

the formula for finding the area of a triangle is b*h/2 so it would be 6*4/2 which is 12

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A 20 foot ladder leaning against a wall is used to reach a window that is 17 feet above the ground. How far from the wall is the
GarryVolchara [31]

The bottom of the ladder is 10.5 feet away from the wall

Step-by-step explanation:

The given scenario forms a right triangle.

Where

The length of ladder will be the hypotenuse

The wall on which the window is situated will ebt he perpendicular and

The distance between the foot of ladder and the wall will be the base

So,

Hypotenuse = H = 20 foot

Perpendicular = P = 17 feet

Base = B = ?

Using the Pythagoras theorem

H^2=P^2+B^2\\(20)^2=(17)^2+B^2\\400=289+B^2\\400-289=B^2\\B^2=111\\Taking\ square\ root\ on\ both\ sides\\\sqrt{B^2}=\sqrt{111}\\B=10.53\\Rounding\ off\ to\ the\ nearest\ tenth\\B=10.5

The bottom of the ladder is 10.5 feet away from the wall

Keywords: Triangle, Pythagoras Theorem

Learn more about Pythagoras theorem at:

  • brainly.com/question/9532142
  • brainly.com/question/9590016

#LearnwithBrainly

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What<br> What is 150% of 50?<br> F. 51.5<br> G. 57.5<br> H. 65<br> J. 75<br> K. 125
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Answer:

It's j

Step-by-step explanation:

75

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