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
postnew [5]
2 years ago
7

I need the angle measurements for each letter in this image

Mathematics
2 answers:
prisoha [69]2 years ago
8 0

Answer:

<b=150

Step-by-step explanation:

Blizzard [7]2 years ago
7 0

Answer:

To find c you know that angles on a straight line equal 180° (supplementary angles). So 70+30+∠C=180.

Now we can solve this.

100+c=180.

Move the 100 over to the other side.

100-100+c=180-100

Simplify.

∠C=80°

Because we know that the two lines with double arrows are parallel, we can use the rule that alternate interior angles are congruent. This means that ∠E=70.

∠E=70°

Since the total sum of the angles in a triangle are equal to 180°, we know that ∠D+∠C+∠E=180. Because we already know ∠C and ∠E we can put those numbers in for them. 80°+70°+∠D=180°. Now we can solve this.

80+70+D=180

Simplify this.

150+D=180

Now we move the 150 over to the other side to get D by itself.

150-150+D=180-150

Simplify.

D=30

∠D=30°

Now we can find the vertical angle opposite ∠A by using the alternate interior angles rule again this time using the parallel lines with only one arrow on them. The vertical angle opposite ∠A=30°. Since vertical angles are congruent ∠A=30°.

∠A=30°

We are going to use the alternate angles rule one more time to solve for ∠B (this rule is very important when dealing with parallel lines), we could also use the corresponding angles rule but for simplicity we will just stick with the alternate angles rule. Because the vertical angle opposite ∠A is equal to 30°, we can see that the supplementary angle opposite ∠B=30°. Because this angle is supplementary with B we know that 30+B=180.Now we can solve this.

30+B=180

Now we move the 30 over to the other side.

30-30+B=180-30

Simplify.

B=150

∠B=150°

I hope this helps!

You might be interested in
The sum of a number and 9, times 12
Sliva [168]

Answer:

1 + 9 x 12 = 120

2 + 9 x 12 = 132

3 + 9 x 12 = 144

4 + 9 x 12 = 156

5 + 9 x 12 = 168

Step-by-step explanation:

Any of the ones on top, but there are tons of others too

6 0
3 years ago
Help to reaolve this problem?
Elanso [62]
B! 
Hope this answer can help you!

3 0
3 years ago
Read 2 more answers
Use for Questions 11-15
Juli2301 [7.4K]

Step-by-step explanation:

12. 136/300

=52%

13.45/300

=15%

6 0
2 years ago
Write 23 hundredths in scientific notation
Dmitry [639]

Answer:

Step-by-step explanation:

23 hundredths = 0.23 = 2.3 * 10⁻¹

8 0
3 years ago
Two friends live more than 9 blocks away
monitta
So they move in together to be closer to each
5 0
3 years ago
Other questions:
  • Lung cancer is the leading cause of cancer-related deaths in the United States. Researchers examined the idea of testing all Med
    7·1 answer
  • Bob's hardware sells buckets in five different sizes. the tiny bucket holds 3 quarts, the small holds 6 quarts, the medium holds
    11·2 answers
  • Put these in radical form <br><br> X 4/3 <br><br> 3/42 <br><br> 4 square root of 81
    11·1 answer
  • Allison has 3 containers with 25 crayons in each.She also has 4 boxes of markers with 12 markers in each box.She gives 10 crayon
    9·2 answers
  • You deposit $250 in a bank account that pays an annual interest rate of 2%. How much simple interest will you earn after two yea
    5·1 answer
  • A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 60 dumpster loads of
    9·1 answer
  • What is 40% in fractions
    14·2 answers
  • The answer and the graph :)
    8·1 answer
  • Hii i’ll give brainliest please help thanks :)
    12·1 answer
  • Which number line shows the solution to the inequality 3x + 6 &gt; 9?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!