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
Llana [10]
3 years ago
8

At ∆ ABC, the exterior angle at C, measures 126 °. If the ∡B measures twice the ∡A. How long is ∡A?

Mathematics
2 answers:
Masteriza [31]3 years ago
4 0

Answer:

<A=42°

Step-by-step explanation:

If the exterior of angle C is 126, the interior is 54.

The sum of the other two angles must be 126. (Exterior Angle Theorem)

If B is twice A, we divide 126 into thirds. This is 42.

So A is 42, B is 84, and C is 54.

Inga [223]3 years ago
4 0

Answer:

42°

Step-by-step explanation:

An exterior angle is equal to the sum of the opposite interior angles.

A + B = 126

The measure of B is twice the measure of A.

B = 2A

Substitute:

A + 2A = 126

3A = 126

A = 42

You might be interested in
What is the advantage of opening a credit card account at a young age?
soldier1979 [14.2K]

Answer:

A. it helps people begin to build credit history.

Step-by-step explanation: It wants to know an ADVANTAGE! B is NOT an advantage. C high interest rates are very bad and make you pay more so its not C. D do i even really have to explain? lol the correct answer is A :)

3 0
3 years ago
Read 2 more answers
Help asap please info in pic
SVETLANKA909090 [29]
D will be the answer shifter left 1 point
7 0
3 years ago
x27% of all telephones of a certain type are submitted for service while under warranty. Of these, 63% can be repaired whereas t
Molodets [167]

Answer:

  I know the formula and believe I can answer the question, I just want to make sure I'm using the right probability,p from the equation bellow.

Using the equation: p(x)=(nx)px(1−p)n−x. I wanted to know if p=2/10?

Step-by-step explanation:

no steps just answer

3 0
3 years ago
Which shows the expression in the order they would appear on a number line from least to greatest GIVING BRAINIEST
Ber [7]

Answer:

C, the 3rd one

Hope this helped! Have a great day!

3 0
3 years ago
Complete the proof for me please, I need help
Naya [18.7K]

Answer:

See explanation for answers

Step-by-step explanation:

Reason 1) Given from the problem statement(because it says that B is the midpoint of AC)

Reason 2) Because B is the midpoint of AC

Reason 3) Given frome the problem statement(because it says that AB/cong CD)

Reason 4) Because two lines congruent to each other have the same length

Reason 5(You didn't explain well)) BC=AB=CD, so BC=CD(Specific reason: Transitivity of equality)

And we're done!

4 0
3 years ago
Other questions:
  • Solve the equation 12(16x – 6) = 2.
    10·1 answer
  • timmy writes the equation f(x) = x – 1. He then doubles both of the terms on the right side to create the equation g(x) = x – 2.
    9·1 answer
  • ∠xangle, x and ∠ y ∠yangle, y are supplementary angles. ∠ y ∠yangle, y measures 13 9 ∘ 139 ∘ 139, degrees. What is the measure o
    5·2 answers
  • Alex is ordering salads and drinks for his friends. Salads cost $8 each, drinks cost $4 each, and there is a $6 delivery charge
    13·1 answer
  • 14 + (-26) - 14 -26 <br> pls explain how to get the answer
    12·2 answers
  • Pls explain ASAP <br> Thanks
    9·2 answers
  • The car owned by a person is a part of his or her
    14·2 answers
  • 19. What is the distance between P(-3, 10 ) and Q( 12, -6 )? Round to the nearest hundredth
    6·1 answer
  • Are two line segments always similar
    9·2 answers
  • Which of the following is equivalent to 23 X^-1/2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!