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]
4 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]4 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]4 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
Help pls 1-4 I need asap
pogonyaev

Answer: it’s geometry

Step-by-step explanation:

7 0
3 years ago
URGENT 23-28 with work
dybincka [34]
-5                  This is the answer with the work
 23
-28
-----
   -5
7 0
3 years ago
Hank estimated the width of the door to his class room in feet what is a reasonable estimate
timurjin [86]
My reasonable estimate might be about 2 1/2 feet. I know that because taking three rulers up to your bedroom or a normal room and get about 2 or 2 1/2 feet
4 0
3 years ago
Which of the following correctly describes confidence level?
elena-s [515]

Answer:

C: A confidence level is the probability that something will fall within a confidence interval.

Have a good day!

8 0
3 years ago
A circle has a diameter AB, and its center is at (-3, 3). Point A is at (1/2,6). Where is point B located?
erastovalidia [21]

The point B is located at (-6.5, 0)

<h3>How to determine where is point B located?</h3>

The points are given as:

A = (1/2, 6)

Center = (-3, 3)

The center is calculated as:

Center = 0.5 * (x1 + x2, y1 + y2)

So, we have:

(-3, 3) = 0.5 * (1/2 + x, 6 + y)

This gives

(-6, 6) = (1/2 + x, 6 + y)

Solve for x and y

1/2 + x = -6

6 + y = 6

This gives

x = -6.5

y = 0

Hence, the point B is located at (-6.5, 0)

Read more about coordinate points at:

brainly.com/question/5566419

#SPJ1

7 0
1 year ago
Other questions:
  • Which equation has the steepest graph
    9·1 answer
  • A filter in the shape of a cone has a diameter of 3 inches and a height of 4 inches.
    8·1 answer
  • Simplify (8j3 − 3j2 + 5) − (4j3 + 8j2 + 7j − 6).
    9·2 answers
  • Can anyone help me!!
    5·2 answers
  • A pharmacist found at the end of the day she had 5/4 as many prescriptions for antibiotics then tranquilizers. She had 18 prescr
    12·1 answer
  • PLZ NEED HELP IMMEDIATELY A jacket usually sells for $61.00. If the jacket is 40% off, and sales tax is 8%, what is the total pr
    11·1 answer
  • Select the correct answer
    13·2 answers
  • Question 2-4 please
    11·1 answer
  • What is the solution to the following system: y=6x+5 and 5x-4y=-1
    8·2 answers
  • Jim writes 10/4words evry day how many words does he write in 10/3 days
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!