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
Simora [160]
4 years ago
14

Solve for x please!!!!

Mathematics
1 answer:
AleksAgata [21]4 years ago
5 0

11) Since the triangle has a pair of congruent base angles, it is an isosceles triangle which means that the two pairs of legs are congruent.

Make them equal to each other in an equation.

5x = x + 20

Subtract x from both sides.

4x = 20

Divide both sides by 4.

x = 5

12) The two legs are congruent so that means the base angles must be congruent. First find the measure of the base angles. Create an equation:

x + x + 50 = 180

Combine like terms.

2x + 50 = 180

Subtract 50 from both sides.

2x = 130

Divide both sides by 2.

x = 65

Now make the base angle plus x equal 180, because they form a straight line.

65 + x = 180

Subtract 65 from both sides.

x = 115

13) You know the vertex angle (top angle) is 90 degrees because it is supplementary to a right angle. The triangle is isosceles because the two legs are congruent, so make the base angles plus 90 add up to 180 in an equation.

x + x + 90 = 180

Combine like terms.

2x + 90 = 180

Subtract 90 from both sides.

2x = 90

Divide both sides by 2.

x = 45

You might be interested in
What is 1836837292 times 816282?
LiRa [457]

Answer:

The product is 1.4993772e+15.

Step-by-step explanation:

Thanks for the points! Brainliest? Thanks!

5 0
2 years ago
Read 2 more answers
How we all doing? Can someone explain Graphs!
mixas84 [53]

Answer:

They are all diffrent its like every second they get better!

They are so amazing!

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please Help!!!!! I need the answer for my quiz!!!!
kondaur [170]

Answer:

I think its 3 1/4

Step-by-step explanation:

9 3/4 ÷ 3 = 3 1/4

Srry if im wrong

3 0
3 years ago
Read 2 more answers
Find the perimeter of the polygon
Sphinxa [80]

Answer:

I am not 100% sure but I think that its 46

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Use addition to solve the linear system of equations. Include all of your work in your final answer.
motikmotik

Answer:

1

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • 2 3 5 6 7 8 9
    7·2 answers
  • What is a Parallax Error(Human)?
    11·1 answer
  • the intake pipe can fill a certain tank in 6 hours when the outlet pipe is closed, but with the outlet pipe open it takes 9 hour
    5·1 answer
  • The total cost for two family cars was $71,1482 the cost of one car was $38,295 write an equation using a variable to represent
    6·1 answer
  • Find the Unit Rate
    13·1 answer
  • Solve: negative 1 over 2 x + 2 = −x + 7<br><br> 10<br><br> 5 over 2<br><br> 2 over 5<br><br> 20
    5·2 answers
  • F(x) = (x - 3)(x + 4)
    9·1 answer
  • Can somebody help me ?
    15·2 answers
  • -2x - 7 = 3 need the answer
    14·1 answer
  • (-1, 3)<br> (-5, -5)<br> (0, -4)<br> (1, 2)<br> (4, 4)<br> (3, 8)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!