The first one I've already naswered: If two lines don't intersect, then they don't share a common point.
The second one:
If A is not the initial point, then AB is not a ray.
(4*4*10)*3
160*3=480
(5*3*10)*2
150*2=300
480+300=780 cub. meters
It is -1, you first make the -1 positive but then the negative sign outside makes that 1 turn -1
The factored form of this expression would be :
(k-3h)(k+3h).
Answer:
c
Step-by-step explanation:
x²+y²+4x+6y=0
compare with x²+y²+2gx+2fy+c=0
centre is (-g,-f)=(-2,-3)
radius=√(g²+f²-c)=√((-2)²+(-3)²-0)=√13
