David is playing a trivia game where he gains points for correct answers and loses points for incorrect answers. at the start of round 3 his score is −1500 points. during round 3 he answered five 1000 point questions correctly and three 500 points questions incorrectly. what is his score at the end of round 3?

Asphere has a diameter of 10 in. what is the volume of the sphere?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?