Which expression is equivalent to cos 120°?
cos 60°
cos 240°
cos 300°
cos4200

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

Which of the following circles have their centers in the third quadrant? check all that apply.

13 is the same as 1÷3. what is the exact quotient in decimal form of 1÷3?