The temperature at 6: 00 p. m. was 15 degrees celsius. the temperature dropped 2 degrees celsius per hour. what was the temperature at 4: 00 a. m?

Evaluate the given expression if m=45 |-3m|

True or false? a circle could be circumscribed about the quadrilateral below.

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.