The formula of a distance between two points:

We have the points (-1, 8) and (5, -2). Substitute:

Answer:
A=πr(r+h2+r2)
Step-by-step explanation:
literally just search it up
Answer:
∠C=90°
∠A=67°
∠B=23°
Step-by-step explanation:
For angle C:
Thales' Theorem states that an angle inscribed across a circle's diameter is always a right angle.
Therefore, since AB is the diameter(hypotenuse) then angle C is the right angle. (90°)
For Angle A:
The measure of arc BC= 134 degrees. We can just use a formula for an inscribed triangle. ∠A = 1/2 (mBC)
∠A= (1/2)134
∠A= 77°
For angle B:
All triangle angles all add up to 180. We can just subtract angles A and C from 180°:
∠B = 180-(90+67)
∠B = 23°
Answer:
a) non-proportional/ constant rate: 3
b) non-proportional/ constant rate 3
Step-by-step explanation:
It is 10 percent more then 198.