Based on the diagram, which reason justifies this statement?
If ZCEF is complementary to ZDCF, then
ZDCFZFEG.
O Complements of the same angle are congruent.
O Complements of congruent angles are congruent.
O Supplements of the same angle are congruent.
O Supplements of congruent angles are congruent.

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

Match the vocabulary to the proper definition. in probability, two events in which 1. conditional probability the outcome of one event is independent of the outcome of a second event. 2. dependent events in probability, two events in which the outcome of one event is dependent on the outcome of a second event. the probability of an event in which the outcome of the event is conditional on the outcome of one or more different events. 3. independent events