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
Serhud [2]
3 years ago
7

The point P on the circle x2 + y2 = r2 that is also on the terminal side of an angle θ in standard position is given. Find the i

ndicated trigonometric function.
(3, 4) Find sin θ.

the answer options are attached, if you could show the work or formula that would be great Thanks!

Mathematics
1 answer:
Brut [27]3 years ago
6 0
Okay so you do not really need the circle equation. if you make a triangle with it's x length as 3 and it's y length as 4, you will be able to find the third length. Do Pythagorean theorem to find the hypotenuse. 
the hypotenuse will be five after you calculate it.

sin is opposite over hypotenuse or Y over R

so... the sin is 4/5

make sure you know what  quadrant your triangle is in for the negatives
 
You might be interested in
Greg has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Greg's Jumble has 6 clas
zhannawk [14.2K]
An observation of the Moon was conducted from Friday, November 8, 2013 to Thursday, November 14, 2013. The study of the Moon during this period occurred consistently between the hours of 8 and 9 p.m. EST within the Northern Hemisphere at 37.3346° N, 79.5228° W (Bedford, V.A.). The Moon was noted to be illuminated on the right side and had a dark shadow on the left side indicating a waxing phase. The light region grew over the surface of the Moon with each subsequent night. The first night’s phase was waxing crescent with over 25 percent of the Moon lit up. The next night, the light had grown to cover more of the Moon as it continued through its waxing crescent phase. On November 10th, the Moon exhibited traits of being at first-quarter or …show more content… 
An observation of the Moon was conducted from Friday, November 8, 2013 to Thursday, November 14, 2013. The study of the Moon during this period occurred consistently between the hours of 8 and 9 p.m. EST within the Northern Hemisphere at 37.3346° N, 79.5228° W (Bedford, V.A.). The Moon was noted to be illuminated on the right side and had a dark shadow on the left side indicating a waxing phase. The light region grew over the surface of the Moon with each subsequent night. The first night’s phase was waxing crescent with over 25 percent of the Moon lit up. The next night, the light had grown to cover more of the Moon as it continued through its waxing crescent phase. On November 10th, the Moon exhibited traits of being at first-quarter or half-moon status because at least 50 percent of its surface was illuminated. In the following nights, the Moon displayed characteristics of waxing gibbous as the light continued to grow across the moon’s surface from right to left. The Moon was nearing closer to the full moon phase on November 14th as only a very small dark shadow was visible on the left side. 
The Moon takes 27.3 days (sidereal month) to complete its actual orbit around the Earth. Like the Sun, the Moon rises in the east and sets in the west each day. 
7 0
3 years ago
What is equivalent expressions by combining terms like 5c - 4c + c
vampirchik [111]

the answer is 2c you - the five with four then you gaana have 1c +1c equal 2c.

4 0
3 years ago
two lines intersect.One has gradient 4 and y-axis intercept 3. The other has gradient 6 and cuts the y-axis at (0,1). What is th
timurjin [86]

Answer:

(1, 7 )

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Then the equations of the 2 lines are

y = 4x + 3 → (1)

y = 6x + 1 → (2)

Substitute y = 6x + 1 into (1)

6x + 1 = 4x + 3 ( subtract 4x from both sides )

2x + 1 = 3 ( subtract 1 from both sides )

2x = 2 ( divide both sides by 2 )

x = 1

Substitute x = 1 into either of the 2 equations for corresponding value of y

Substituting into (1)

y = 4(1) + 3 = 4 + 3 = 7

Point of intersection = (1, 7 )

5 0
3 years ago
77- -145= 77 minus negative 145 =
ololo11 [35]
77 - (-145) = 77 + 145 = 222
7 0
3 years ago
Read 2 more answers
A plane slices horizontally through a sphere dividing it into two hemispheres. Which term best describes the cross-section of th
Tju [1.3M]
A. circle took the benchmark
5 0
3 years ago
Read 2 more answers
Other questions:
  • 0.12x - 1.5= 0.24x - 0.06
    7·1 answer
  • Salut! <br> |4x^2+9x-9|=0 <br> X= ? <br> Multumesc in avans :D
    11·1 answer
  • On the blueprint of a house 27 millimeters represents 6 meters. The actual length of the living room is 9 meters. What is its le
    15·1 answer
  • 2. A lunch stand makes s.75 profit on each chef's salad and $1.20 profit on each Caesar salad. On a typical weekday, it sells be
    9·1 answer
  • Reflections preserve length and size. Give a quality the a reflection does not preserve.
    5·2 answers
  • Amanda works as a hostess at Red Robin on weekday nights and at the Pix movie theatre on the weekends. Amanda’s pay at Red Robin
    7·1 answer
  • Stan The Boyz<br>Stream Stealer
    5·2 answers
  • ( i will give brainlist ) please help is the following equation linear, quadratic, exponential or none of these?
    14·1 answer
  • The length of a rectangle is "a" inches and the width is 3 inches more than its length. find the perimeter and the area
    14·1 answer
  • Write each phrase as a mathematical expression.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!