ABC is a right-angled triangle. Which of the following pairs of angles are complementary?
A ZBAD and ZABC
B ZBAD and ZDAC
C DAC and ZACB
DZBDA and ZCDA

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?