Tuesday

October 21, 2014

October 21, 2014

Posted by **Jon** on Wednesday, April 22, 2009 at 6:46pm.

r=20

0=140

x=r cos (o)

y=r sin (o)

x=20 cos (140)

y=20 sin (140)

x=20 (-0.7660)= -15.32

y=20 (0.6427)= 12.85

(-15.32, 12.86)

on my answer on my paper, I left off the - and the ) at the end. She pointed at the ( at the beginning but she didn't add the negative sign for 15.32 so I'm confused on whether I got it wrong just because I left off the parenthesis at the end or the answer isn't (-15.32, 12.86)

**Answer this Question**

**Related Questions**

Math - Find the coordinates of the point whose polar coordinates are (20,...

Math(is the problem too hard?) - Find the coordinates of the point whose polar ...

TRIGONOMETRY - Can you check my work, please? This is for a trig study guide for...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...

tigonometry - expres the following as sums and differences of sines or cosines ...

Math - A point in polar coordinates is given, Find the corresponding rectangular...

Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...

algebra - Can someone please help me do this problem? That would be great! ...

Math - Calculus - The identity below is significant because it relates 3 ...

trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...