9th grade geometry- On the unit circle, the radius is 1. We found the coordinates of common angles such as 30°, 60°, 45°, and 90°. What would be the coordinates of a 22° angle? Round coordinates to the nearest hundredth. (Hint: Draw a picture and think of the unit circle stuff)

Triangle knm is what is true about the sides of knm

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.