P(2, 9) is a point on the terminal side of θ in standard position. what is the exact value of cos θ?

If benito is selecting samples of five values from the table, which row will result in the greatest mean? row 1 row 2 row 3 row 4

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9