How many complex roots does this have?

What point is the projection of q on a) r b) s c) t

What is not true about kl and mn? what is mn? (show your work)

Dana wants to identify the favorite professional baseball team of people in her community. she stands outside a local sporting goods store and asks every other person who enters, "what is your favorite professional baseball team? " will the results of her survey be valid? explain.