Answer:
the four point cannot be on the same line , but they have to be on the plane.
A D C E
collinear means on the same line
so ABC
non-coplanar means the point do not lie on the same plane so you can include point F
F A D B
Answer:


Step-by-step explanation:
i is an imaginary unit, this means

Rewrite -5 as 
then

Rewrite -25 as 
then

Answer: x=2/3
Step-by-step explanation:
Answer:120
Step-by-step explanation: i know i am a week late but ...
I don’t know this is a random guess but I’ll say radius = 10 inches and height= 8 inches