Select all the coordinate pairs that are solutions to y= 2x^2 +3x +1

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?

Which answer is the solution set to the inequality |x|< 9? a. x< -9 or x> 9 b. x> -9 and x< 9 c. x> -9 or x< 9 d. x< 9 and x< 9

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)