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
Furkat [3]
3 years ago
13

I need help working question 8. I don't understand how to start it

Mathematics
1 answer:
Lina20 [59]3 years ago
8 0
Why don't you first try to use the cosine law to solve for an angle and then make use of the sin law to solve for the remaining angles.

Cosine law

C^2 = A^2 + B^2 - 2AB(cos C)
Solve for cos C, and then take the inverse of the trig ratio to solve for the angle.

Then set up a proportion like you have done using the sin law and solve for another angle. Knowing the sum of all angles in a triangle add up to 180 degrees, we can easily solve for the remaining angle.
You might be interested in
Find the indicated quotient to the nearest tenth
Novosadov [1.4K]
14.8...........
..................

6 0
3 years ago
Read 2 more answers
A number is decreased by seven. Then, the new number is multiplied by 3 to get an answer of -9.
erastovalidia [21]

Answer:

C: 4

Step-by-step explanation:

You call the number x. Then you do (x-7) * 3= -9.

3x-21=-9

3x=12

x=4

5 0
3 years ago
Read 2 more answers
Need help with this im confused
Jet001 [13]

Answer:

-\frac34 -\frac14 i

Step-by-step explanation:

Let's start with distributing: \frac1{4i}-\frac{3i}{4i} Simplify i with i in the second term, and rearrange.-\frac34 +\frac1{4i}. Since i in the denominator looks ugly, let's multiply top and bottom by i. -\frac34 +\frac i{4i^2} = -\frac34 +\frac i{4(-1)} =-\frac34 -\frac14 i. The middle passage is based on the fact that, by definition, i^2=-1

6 0
3 years ago
Only help me with number 5 plz
blsea [12.9K]

Answer:

Line AB is Perpendicular to line CD

Line AB Parallel to line EF

4 0
3 years ago
Read 2 more answers
160 is_% less than 200?
zmey [24]

Answer:

20%

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Evaluate the function rule for the given value
    15·2 answers
  • Talia took the bus from her home to the bank and then walked back to her home along the same route. The round trip took 0.9 hour
    15·2 answers
  • Fill in the missing dimensions. Round your answer to the nearest tenth
    5·1 answer
  • A contractor is tiling the bottom of a round fish pond with 1-inch square tiles that cost $0.12 each. the fishpond has a diamete
    15·2 answers
  • Write the subtraction as addition , -9 subtracting (-4)
    13·2 answers
  • 2 tens 3 tenths 1 thousandths greater or less than 20.31
    9·1 answer
  • The altitude of the hypotenuse of a right triangle divides the hypotenuse into 45 in. and 5 in. segments. What is the length of
    13·1 answer
  • Really easy for some people DUE TONIGHT AT 11:59
    15·1 answer
  • Solve for x, find the simplified radical & decimal
    15·1 answer
  • Can you help me with this, please? Thanks in advance ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!