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
Leno4ka [110]
4 years ago
10

Angle A and angle B are complementary angles of right triangle ABC, cos A = 0.83, and cos B = 0.55. What is sin A + sin B?

Mathematics
1 answer:
mezya [45]4 years ago
6 0
Ya she's right it's C bc I had the same thing on my quiz and I got it right
You might be interested in
Solve for x.<br><br> 9(−5+x)=−108<br><br> Enter your answer in the box
fenix001 [56]

Answer:

x=-7

Step-by-step explanation:

Solve by isolating x on the left-hand side:

9(-5+x)=-108\\-5+x=-12\\x=-7

4 0
3 years ago
What is the distance between the points (5,7) and (3, 4) on the coordinate
VARVARA [1.3K]

Answer:

C) 3.61 units

Step-by-step explanation:

5 - 3 = 2

7 - 4 = 3

distance²  = 2² + 3³ = 4 + 9 = 13

distance = √13 = 3.61

4 0
3 years ago
What is the value of f(x)=1/2x+5 when x=4?
Soloha48 [4]

Answer:

f=7/4

Step-by-step explanation:

substitute x for 4 and do the equation you will get the equation f(4)=1/2(4)+5 simplify to the equation to 4f=2+5. Then do the addition and get 4f=7. Divide both sides by 4 and get f=7/4

6 0
3 years ago
Help please!!!
vaieri [72.5K]
We know that In right angle triangle c^2 = a^2 + b^2.
19^2 = 3^2 + b^2
b = (361 - 9)^1/2 = 18.761663039294
Now for angles
 sin(A) = a/c = 3/19
A = sin{-1}(3/19) = 9.0847202873911
A = 9.0847202873911
sin(B) = b/c = 18.761663039294 / 19
B = sin{-1}(18.761663039294 / 19) = 80.915279712614
B = 80.915279712614

8 0
3 years ago
What is the measure of angle 3?
____ [38]

Answer:

c.45 degrees

Step-by-step explanation:

90 -180= 90

90÷2=45

8 0
3 years ago
Read 2 more answers
Other questions:
  • Fred has 254 books in his personal library.He Donated 2/11 of these books to the public library.How many books does he donate
    15·1 answer
  • The graph of y = 1/2x^2 will be more narrow than the graph of the parent function, y = x²
    9·1 answer
  • Multiply and simplify <br> Need help quick
    6·2 answers
  • What is X:<br> |4x−1|=3 <br><br> |x|=−4
    6·2 answers
  • If 2 : 9 = x : 18, then find the value of x
    5·2 answers
  • What is 57 x 4?<br> Enter your answers in the boxes to complete the area model.
    5·1 answer
  • Does the graph represent a function?
    11·2 answers
  • Help pls
    11·1 answer
  • What is the equation of the line that has a slope of -3/4 and goes through the .8, -2
    14·1 answer
  • Simplify 3^1/4 times 27^1/4
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!