Answer:
It's B
Step-by-step explanation:
Because I randomly guessed and that was the answer.
Answer:
slope perpendicular= -1
Step-by-step explanation:
3x-3y=-63
-3y=-3x-63 divide both sides by -3
y=1x+21
Perpendicular lines have slopes that are the opposite of the reciprocal of each other
Answer:1
Step-by-step explanation:
Answer:
(x,y)(-y,x)
Step-by-step explanation:
Triangle ABC is isosceles (even tho' it doesn't look so).
m<BDE = m<BED because of that.
Thus, 66 degrees + 2 m<BDE = 180 degrees, and
2 m<BDE = 114 degrees. Thus, m<BDE = 57 degrees.