Lisa has three classes that each last 50 minutes what is the total number of minutes that the classes last

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

If angle 2=3x +1 and angle 3=2x +4what is angle 2

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