Answer:
The equation of the plane is represented by 
.
Step-by-step explanation:
Algebraically speaking, a plane can be represented by following vectorial product:
(1)
Where:
, 
, 
- Plane coeffcients.
, 
, 
- Coordinates.
We need three distinct points to determine all coefficients. If we know that 
, 
and 
, the system of equations to be solved is:
(1)
(2)
(3)
The solution of this system is 
, 
, 
.
Hence, the equation of the plane is represented by .
The location on the number line is B
Answer:
by the same size and same degrees.
Step-by-step explanation:
Volume of the cylinder = πr²h = π(1)² (21) = 21π cm³
Volume of the cone = 1/3 π r² h
21π = 1/3 π (r)² (7)
r³ = 21π ÷ (7/3 π)
r² = 9
r = 3
Answer : Radius = 3
