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
goldfiish [28.3K]
3 years ago
15

How do you find the exact cosine or sine value for each given measure of an angle?

Mathematics
1 answer:
Helen [10]3 years ago
5 0

Answer:

REMEMBER:

to find the sine, cosine on the unit circle:

cos a = coordinate value x

sin a = coordinate value of y

Step-by-step explanation:

I'm not sure y'all but i hopes this helps just a remember.

You might be interested in
What is 1.9961 x 10^-7
kakasveta [241]

Answer:0.00000019961

Step-by-step explanation:

I moved the decimal place by the number of the exponent

4 0
3 years ago
3x + y = -21<br> x+y=-5<br> solving systems of equations by substitution
katen-ka-za [31]
First : x=-5-y and then put x in the phrase above
7 0
3 years ago
Which equation could be used to find the height of the flagpole
Sauron [17]
X = height of pole (in meters)

With respect to the 50 degree angle, the side x is the opposite leg. It is the leg furthest from the reference angle. The hypotenuse is 5 meters. 

The trig function sine ties together the opposite and hypotenuse

sin(angle) = opposite/hypotenuse
sin(50) = x/5
5*sin(50) = x .... multiply both sides by 5
x = 5*sin(50)

------------------

Since x = 5*sin(50) isn't listed as an answer choice, let's try using cosine. We can't use it right away because we don't know the adjacent side. What we can do is change the reference angle. The missing angle of the triangle is 90-50 = 40 degrees. Let's make the 40 degree angle the reference angle

So x is now the adjacent side with respect to the 40 degree reference angle. The hypotenuse is always the longest side. The hypotenuse stays at 5.

cos(angle) = adjacent/hypotenuse
cos(40) = x/5
5*cos(40) = x
x = 5*cos(40)

This expression is listed. The answer is choice B

4 0
3 years ago
David bought a pizza for $12.74 and four medium drinks. Define a variable and write an expression to represent the total amount
SSSSS [86.1K]
You could say each drink is d. And we'll say the total is t. David got 4 drinks,

So... 12.74 + 4d = t

Hope this helps!
7 0
3 years ago
Quais os numeros naturais entre 893 e 991 que divididos por 23 deixam sempre o maior resto possível
Alla [95]
English please ? I only speak English but I’m sure I can help.
6 0
2 years ago
Other questions:
  • What does it mean use doubles to find the sum 7+8.
    11·2 answers
  • How to find the prime factorization of 65
    5·2 answers
  • What is the quotient of 56,700 ÷ 15?
    8·2 answers
  • Solve 0.667a+5=1.667a
    15·2 answers
  • Evauate the expressin 43/23
    7·1 answer
  • Devon has 8 pairs of socks and 3 pairs of shoes how many ways can Devon choose one pair of socks and one pair of shoes
    12·1 answer
  • Which choice could you use to find the distance D between the points shown on the number line
    12·1 answer
  • How do you add numbers?<br> Please help i am 1st graders
    5·1 answer
  • What is the length of the hypotenuse in the right triangle shown below?<br><br> 45°<br> 45<br> 6
    8·2 answers
  • Can someone help me pls I’m stuck on both problems
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!