# Math

Which of the following is another representation of the polar coordinate -9, -90 degrees?
Is it 9,270 degrees

1. 👍 0
2. 👎 0
3. 👁 373
1. (-9,-90°)
this would point you clockwise 90° or 270° using the standard rotation.
You would then go in the opposite direction for 9 units
so equivalent to (9, 90°)

(9,270°) would be the same as (9, -90°)

1. 👍 0
2. 👎 0
posted by Reiny

## Similar Questions

1. ### Pre-Calc

I posted yesterday and didn't get a response so I'm hoping someone can check these today-Thank you they are polar coordinate questions--My answers are her I just need them checked- 1.Which of the folowing is another representation

asked by Jonathan on September 28, 2011
2. ### pre calculus

In the rectangular coordinate system, each point (x, y) has a unique representation. Explain why this is not true for a point (r, Θ) in the polar coordinate system.

asked by john on December 7, 2016
3. ### Pre-Calc

Please check my answers;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one??

asked by Jonathan on September 27, 2011
4. ### Pre-Calc-Please check I'm desperate

Please check my answers I really need to do my homeowrk!;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0

asked by Jonathan on September 27, 2011
5. ### Pre-Calc

Please check my answers I really need to do my homeowrk!;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0

asked by Jonathan on September 27, 2011
6. ### precaculus

Convert the rectangular coordinate (2,-2) to polar form and find two additional representations of this point. Can you check my work and explain how to finish the question? r=√(2)2+(-2)2 r=2√2 tan theta = (-2)/2 theta = -1

asked by Anonymous on December 12, 2016
7. ### Pre-calculus- URGENT

Convert the rectangular coordinate (-8,i (square root of 3) into polar coordinates. How do I do this?? I tried every way I knew of to convert the y coordinate (i (square root of three)) to polar form, but it didn't work. I think

asked by Ellie on September 13, 2015
8. ### physics

The most convenient way to express vectors in the two dimensional plane is in the familiar (x,y) Cartesian coordinates. However, one can express vectors in other coordinate systems as well. For example, another useful coordinate

asked by raja harishchandra on June 13, 2013
9. ### physics

The most convenient way to express vectors in the two dimensional plane is in the familiar (x,y) Cartesian coordinates. However, one can express vectors in other coordinate systems as well. For example, another useful coordinate

asked by Anonymous on June 14, 2013
10. ### physics

The most convenient way to express vectors in the two dimensional plane is in the familiar (x,y) Cartesian coordinates. However, one can express vectors in other coordinate systems as well. For example, another useful coordinate

asked by raja harishchandra on June 12, 2013

More Similar Questions