1: Its B
4: Its D
Sorry I don't know what how to explain it.
Answer:
a.
b.
Step-by-step explanation:
We are given that


a.Substitute z=0
...(1)
..(2)
Subtract equation (1) from equation (2)


Substitute y=0 in equation(1)

The point (6,0,0) lie on a line.

Let 



Therefore, the vector 
Line is parallel to vector a' and passing through the point (6,0,0).
The parametric equation is given by

Using the formula
The parametric equation is given by

Angle between two plane

and 

Using the formula



Where
in degree.
Answer:
12
Step-by-step explanation:
Another name for x is plane F
Answer:
Colin gets 
Step-by-step explanation:
One part is excluded in the problem. That part is:
"Caroline gets
of the money."
<u>Solution:</u>
If Caroline gets 1/9th, then remaining is:

Colin and Sarah share in ratio 3 is to 1, that means 3 + 1 = 4 parts...
8/9th in 4 parts means, each part is:

We know Colin gets "3" parts of the total, each part is (2/9)th, so 3 parts would be:

Colin gets 