1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
slava [35]
3 years ago
9

Which statement accurately describes how to performa 90 counterclockwise rotation of point A (-1, -2) around the origin

Mathematics
2 answers:
mars1129 [50]3 years ago
6 0

Answer:

Create a circle with the origin as its center and a radius of the origin and point A then locate a point on the circle that is 90° counterclockwise from point A.

The coordinates of image after 90° counterclockwise rotation are A'(2,-1).

Step-by-step explanation:

Geometrically:

To perform a 90 degree clockwise rotation of a point A(-1,-2) around the origin, we need to follow some steps which as shown below:

1. Place and compass on the origin and draw a circle which is passes through the point A

(-1,-2).

2. Make a point on the circle that is 90° counterclockwise from point A.

Algebraically:

If a point rotated 90° counterclockwise around the origin, then

(x,y)\rightarrow (-y,x)

The given point is A(-1,-2)

A(-1,-2)\rightarrow A'(2,-1)

Therefore, the coordinates of image after 90° counterclockwise rotation are A'(2,-1).

Vadim26 [7]3 years ago
3 0

Answer:

need to know the options

Step-by-step explanation:

You might be interested in
Factor completely. 5x^2 - 45
kotegsom [21]
Simple...

you have: 5 x^{2} -45

Using the box method-->>

5(x+3)(x-3)

Thus, your answer.
3 0
4 years ago
Read 2 more answers
Dr black is standing 20 feet from street lamp lamp shadow is 5 feet long angle from top of his shadown to top of light is 30degr
s344n2d4d5 [400]
Then answer would be

90° < 0 < 180°.

hope it helps!
7 0
4 years ago
El perímetro de un triángulo es...
slamgirl [31]
A)...la suma de sus lados
5 0
3 years ago
PLEASE HELP ME I DONT GET THIS AT ALL!
MrMuchimi

Answer:

A=5/12 B=4/12

Step-by-step explanation:

(1,2,3,4,5)=How many cards are less than 6= 5/12

(3,6,9,12)=How many cards are divisible by 3= 4/12

Hope this helps!

6 0
4 years ago
A dog pen is 18
Stella [2.4K]

Answer:

108 ft

Step-by-step explanation:

18x2=36

36+36+18+18=108

Perimeter is the total added amount that surrounds the shape.

8 0
3 years ago
Other questions:
  • I need help on how to do this
    10·1 answer
  • If f(x)=x/3-2 and g(x)=3x^2+2x-6, find (f+g)(x)
    11·1 answer
  • Slope = -1/3 passing through (4,-9) <br> Point- slope form and slope-intercept form
    7·2 answers
  • A line has a slope of 3 and contains the point (−1, −8). Which equations represent the line? Choose all answers that are correct
    14·1 answer
  • X-5/5+10 Simplify this algebraic expression​
    11·1 answer
  • Y=kx+1 <br> M(2,-7) <br><br> What is K
    8·1 answer
  • I don't understand this question!!!!!!
    6·2 answers
  • Question<br> -2(8)=<br> I really need help please! I will pay u back with good things! :)
    5·1 answer
  • Twelve is added to twice a certain number​
    13·2 answers
  • Two ocean beaches are being affected by erosion. The table shows the width, in feet, of each beach measured at high tide where 1
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!