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)

Which is the completely factored from of xy^3-x^3y

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?