In right triangle △ABC, altitude overlineBD is drawn to hypotenuse overlineAC. If AD = 5 and BC = 2√ 21, find DC, BD and ABAB.

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28