Polar coordinates are written as the distance of the point to the origin and its angle of elevation around the unit cirlce.
Draw a right triangle with an angle of

and a hypotenuse with a length of 5.
You can use trigonometric ratios to find the legs of this triangle, which are the x and y coordinates of the point.

As for y...

Answer:
d .9
Step-by-step explanation:
n^2-3 = 2×39 (line joining midpoints is half of third line )
n^2 = 78+3
n^2 =81
n =9
Answer:
(n+11)^2
Step-by-step explanation:
Hope this helps!
Answer:
C) 3 sets of -2 tiles
Step-by-step explanation:
Its -2 three times, making it -6
If you multiply a positive and negative it is always negative