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
In-s [12.5K]
3 years ago
14

Angles and polygons

Mathematics
1 answer:
Andre45 [30]3 years ago
8 0

Answer:

∠1 = 66°

Step-by-step explanation:

∠1 + ∠3 = ∠4 (exterior angle theorem)

∠1 + 57° = 123°

∠1 = 66°

You might be interested in
What are the coordinates of the centroid of a triangle with vertices J(−4, 2) , K(2, 4) , and L(0, −2) ?
Kryger [21]
Given the coordinates of the three vertices of a triangle ABC, 
the centroid coordinates are (x1+x2+x3)/3, (y1+y2+y3)/3
<span>so (-4+2+0)/3=-2/3, ]2+4+(-2)]/3=4/3
so the coordinates are (-2/3, 4/3)</span>
3 0
3 years ago
Read 2 more answers
Someone please help me with this question please
Eddi Din [679]

Answer: False

Step-by-step explanation:

6 0
3 years ago
4x + 1 = 2x - 5<br> show all steps
konstantin123 [22]

How to solve your question

Your question is

4

+

1

=

2

−

5

4x+1=2x-5

4x+1=2x−5

Solve

1

Subtract  

1

1

1

from both sides of the equation

2

Simplify

3

Subtract  

2

2x

2x

from both sides of the equation

4

Simplify

5

Divide both sides of the equation by the same term

6

Simplify

Solution

=

−

3

3 0
3 years ago
Read 2 more answers
What is tthe answerto the problem
Lemur [1.5K]

Answer:

g = 5

Step-by-step explanation:

-8 + (-2g) = -18

-8 -2g = -18

-2g = -18+8

-2g = -10

g = -10/-2

g = 5

5 0
3 years ago
Read 2 more answers
Why does these expressions 2(30x-24), 3(20x-16), and 4(15x-12) have the same expansion?
MariettaO [177]
The expressions have the same expansion I'd say because the pairs 2 and 30, 3 and 20, and 4 and 15 because they are all equivalent to 60 because they are all factors of 60.

Same goes with the other pairs, because they are all equivalent to 48 because they are all factors of 48.
6 0
3 years ago
Other questions:
  • BCD is a trapezoid. = 1 cm and = 5 cm, and the area = 7.5 cm2. What is the altitude of the trapezoid?
    8·1 answer
  • Hello I need help on it pls ​
    12·1 answer
  • As the limit of x goes to 3 from the left find the limit of (x/ sqrt x^2 -9)
    5·1 answer
  • If someone types the alphabet then you can earn 16 points, because why not.
    7·1 answer
  • Someone please help me
    13·1 answer
  • 10 points (d+6)(2d2−d+7)
    6·2 answers
  • U=1-3v/vt-w make t the subject<br> Answer for it
    15·1 answer
  • Type the missing number in this sequence
    12·2 answers
  • Explain the three different ways of writing a ratio and provide an example
    13·1 answer
  • Ron bought a keychain for $7 and 3 t-shirts. He spent a total of $37. How much does each t-shirt cost?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!