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
Lapatulllka [165]
3 years ago
13

I need help how do you solve #4

Mathematics
2 answers:
Sloan [31]3 years ago
5 0

A + B + C = 180

A = B --> B = A

A = 4·C --> C = 1/4*A

A + A + 1/4*A = 180

2.25*A = 180

A = 80

Inessa05 [86]3 years ago
4 0

#4

In triangle ABC, AB = BC. it's isosceles triangle so <A = <B

Lets x = measure of angle C, so <C = x

<A is 4 times <C so <A = 4x but <A = <B so <A = <B = 4x

Sum of interior angles in a triangle = 180

x + 4x + 4x = 180

9x = 180

x = 20

<A = 4(20) = 80°

Answer is (3) . 80°

You might be interested in
What is the solution to 4(x-1)-2(3x+5)=-3x-1
Margarita [4]

To solve this problem, we need to get the variable x alone on one side of the equation. To begin, we are going to use the distributive property twice on the left side of the equation to expand the multiplication and get rid of the parentheses.

4(x-1) - 2(3x + 5) = -3x -1

4x - 4 -6x - 10 = -3x - 1

Next, we should combine like terms on the left side of the equation. This means we should add/subtract the variable terms and the constant terms in order to simplify this equation further.

-2x - 14 = -3x - 1

Then, we have to add 3x to both sides of the equation to get the variable terms all on the left side of the equation.

x - 14 = -1

After that, we should add 14 to both sides of the equation to get the variable x alone one the left side of the equation.

x = 13

Therefore, the answer is 13.

Hope this helps!

4 0
3 years ago
Read 2 more answers
Help needed ASAP will give brainliest AND 5 STARS
blsea [12.9K]

Answer:

6

Step-by-step explanation:

6 0
3 years ago
last year 80 students signed up for s summer trip to washington, D.C. This summer 50 students have signed up to go. What is the
andrew-mc [135]

Answer:

U can refer this.... but im not sure... hope it's help ya!

3 0
3 years ago
-Quiz-<br> Which equation represents a circle with a center at (-4, 9) and a diameter of 10 units?
vodka [1.7K]

Answer:

(x - 9)2 Step-by-step explanation:

7 0
3 years ago
What is the answer to x^6/x^4
Natalka [10]
X^2
You subtract exponents when dividing exponents
7 0
3 years ago
Other questions:
  • Freezing Pipes
    14·1 answer
  • on a map the distance between two towns is 4inches .The actual distance between the towns is 380 miles.What is the scale of the
    14·1 answer
  • Miriam is driving to Austin. This is what her gas gauge looks like when she stops for lunch. What fraction of her gas tank is fi
    11·1 answer
  • Trina examined the equation below and said that the equation has exactly one solution. Negative 8 (x minus 4) + 2 x = negative 4
    8·2 answers
  • When a number is reduced by 40%, the result is 36. What is the original number?
    15·2 answers
  • The mean and standard deviation of a normal distribution are 150 and 12
    5·1 answer
  • The value of -4 5/8 x is positive.What are two possible values of x?
    13·1 answer
  • Solve PLZ The width of a rectangle is 33 inches and the area is at least 165 inches. Which inequality could be used to find the
    12·1 answer
  • The volume of the right triangular prism is 91.8ft. The height of the prism is 10.8ft. What is the area of each base? Show your
    10·1 answer
  • What is meant by measure of center"?Please define using your own words,or by providing an example.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!