Answer:
y - 5 = -4(x - 5)
Step-by-step explanation:
Slope = 1/4
Perpendicular, slope is opposite and reciprocal so slope = -4
The point-slope form of the line that passes through (5, 5)
y - 5 = -4(x - 5)

Considering the diagram.
is shown to be acute, so
.
Angles in a triangle add to 180°, so
.
Using the law of cosines,

Answer:
I can't understand it the way you put it, you should have added a picture or something, I can't understand it at all.
Answer:
y=3
Step-by-step explanation:
Answer:
B
Step-by-step explanation: