# Pre-calc

posted by .

1. Find the polar coordinates of (8, –8) for r > 0.

2.Find the rectangular coordinates of (9, 150°)

• Pre-calc -

(r,θ) = (8√2,315°) or ((8√2,-45°)
(x,y) = (9cos150°,9sin150°) = (-9/2, 9/2 √3)

• Pre-calc -

dang - gotta stop typing too fast:
(x,y) = (9cos150°,9sin150°) = (-9/2 √3, 9/2)

## Similar Questions

1. ### trig

Given the polar coordinates of a point, how do I find the rectangular coordinates?

1.Graph the polar equation r=3-2sin(theta) 2. Find the polar coordinates of 6 radical 3,6 for r > 0. 3. Find the rectangular coordinates of (7, 30°). 4. Write the rectangular equation in polar form. (x – 4)2 + y2 = 16 5. Write …

1.Graph the polar equation r=3-2sin(theta) 2. Find the polar coordinates of 6 radical 3,6 for r > 0. 3. Find the rectangular coordinates of (7, 30°). 4. Write the rectangular equation in polar form. (x – 4)2 + y2 = 16 5. Write …

1.Graph the polar equation r=3-2sin(theta) 2. Find the polar coordinates of 6 radical 3,6 for r > 0. 3. Find the rectangular coordinates of (7, 30°). 4. Write the rectangular equation in polar form. (x – 4)2 + y2 = 16 5. Write …
5. ### pre-calc help

Convert the rectangular coordinates to polar coordinates with r > 0 and 0 ≤ θ < 2π. (9, −9) (r, θ) = ?
6. ### pre-calc help

Convert the rectangular coordinates to polar coordinates with r > 0 and 0 ≤ θ < 2π. (9, −9) (r, θ) = ?
7. ### Pre-Calculus

Find the rectangular coordinates of the point with the given polar coordinates. (3, 150°)
8. ### Pre-Calculus

Find the polar coordinates of each point with the given rectangular coordinates. Use degrees. (-4,-3)
9. ### Pre-Calc

2. The polar coordinates of a point are given. Find the rectangular coordinates of each point. a. (5,(π / 4)) b. (-2,(π / 6)) NOTE: I tried to do these myself and got that: a= (4.99,0.27) b=(-1.99,-0.11) Which I know these …
10. ### Trig (math)

1.) Find all solutions of the equation. Leave answers in trigonometric form. x^2 + 1 - sqrt3i = 0 2.) Give the rectangular coordinates for the point. (9, 2pi/3) 3.) The rectangular coordinates of a point are given. Express the point …

More Similar Questions