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
Andrej [43]
3 years ago
12

Thr four angles of a quadrilateral L are in the ratio 5:2:3:8find the angle

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
5 0
Ratio = 5:2:3:8
Sum of all internal angles = 360°
5x + 2x + 3x + 8x = 360°
18x = 360°
x = 20°
Therefore,
5x = 100°
2x = 40°
3x = 60°
8x = 160°
5:2:3:8 :: 100:40:60:160.
Simora [160]3 years ago
3 0

Answer:

100 : 40:  60:  160

Step-by-step explanation:

The angles of a quadrilateral add up to 360

If the ratio of angles are 5:2:3:8, multiply each  by x

5x : 2x: 3x: 8x  These are the angles in the quadrilateral

5x+2x+3x+8x = 360

Combine like terms

18x =360

Divide by 18

18x/18 = 360/18

x =20

To find the angles of the quadrilateral,  we can substitute for x

5x : 2x: 3x: 8x

5*20: 2*20: 3*20:  8:20

100 : 40:  60:  160

You might be interested in
Which equation would you use to find x?
Nitella [24]
You would use B to find X
8 0
3 years ago
On a typical day flights at a local airport arrive at a rate of 10 every 15 minutes. At this rate how many flights would you exp
Arturiano [62]
There are 4 sets of 15 minutes in a hour so you would take the 10 airplanes and multiply it by 4 and get 40 as your answer
In 1 hour 40 planes with arrive at the airport
5 0
3 years ago
Select all of the statements that are true about the following expression: -4x^3+3x^2-1
satela [25.4K]

Answer:A

Step-by-step explanation:

7 0
3 years ago
Using Cramer’s Rule, what is the value of x in the system of linear equations below? x+3y=16 3x+y=8
alexdok [17]
Cramer's rule works as follows:
x+3y=16
3x+y=8
Then 
x=Dx/D
y=Dy/D
where Dx,Dy,D are 2x2 matrices formed from of coefficients and right hand side.
D=
1 3
3 1
=1-9=-8
Dx=matrix D with first column replaced by the vector [16,8]=
16,3
8 1
=16-24
=-8

Dy=matrix D with second column replaced by the vector [16,8]=
1 16
3 8
=8-48
=-40

Therefore
x=-8/-8=1
y=--40/-8=5

Check:
x+3y=1+3(5)=16
3x+y=3(1)+5=8   ok.
4 0
3 years ago
Rotate the figure 90 degrees about vertex A.
ziro4ka [17]

Answer:

A' is (1,1) B is (4,1) C is (1,-1)

Step-by-step explanation:

Since we rotating the figure about point a, we know a is the center of the rotation meaning no matter how far we rotate point a new image will stay on where point a pre image was which in this case is (1,1). Also since we know the rules of rotating a angle 90 degrees About the origin we are going to translate the figure to have the one point we are rotating about at the orgin. Since translations are a rigid transformations, the figure will stay the same A. Move the figure 1 to the left and 1 down so A becomes 0,0 B becomes 0,3 and C becomes 2,0. Then apply the rules of 90 degree clockwise rotation rules. (x,y) goes to (y,-x) . A stays (0,0) B becomes (3,0) and C becomes (0,-2). Then translate the figure 1 to the right and 1 down since we rotating about point a which is 1,1 and it at 0,0 rn. A' is 1,1. B' becomes (4,1). C' becomes (1,-1).

5 0
3 years ago
Other questions:
  • The graph of F(x) can be stretched vertically and flipped over the x-axis to produce the graph of G(x). If F(x)=x^2, which of th
    13·2 answers
  • Rebecca and Megan are shopping at a store that sells jewelry, scarves, and purses. The cost of all the items at the store includ
    6·2 answers
  • What is the reverse of add 1
    14·2 answers
  • im not really smart i need help bad, i will give you all of my points and brainliest. it would mean alot if you help
    9·1 answer
  • Ade bought 20 pencils for N400. She sold the pencils at the rate of N25 per pencil. Find his profit percent.
    7·1 answer
  • Need help please!!!!
    6·1 answer
  • Is this graph a function? Explain why or why not.
    11·1 answer
  • (Another one! just for fun!) if you answer all of them and if the answers are correct I will mark you as brainliest! good luck!
    5·2 answers
  • A water tanklalready contains
    11·1 answer
  • Question 1 1.1 Jane wants to make Spaghetti Bolognese for her family of 5 people, including herself. The following is a list of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!