If the point (-2,3) lies on the terminal side of an angle alpha, find the value of cos alpha

Which of the following questions is a statistical question? (2 points) how many professional sport leagues are there? where do the professional sport leagues play? how many hours of professional training took place over the weekend? how many hours do you spend each week training for a sports league?

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.