Answer: yes, they are proportional
Step-by-step explanation:
15/20 = 36/48 (cross multiplication)
15 x 48 = 720
36 x 20 = 720
4x+6y=-12
Make y by itself
6y=-4x-12
y=-2/3x-2
Y intercept: (0,-2)
X-intercept:
0=-2/3x-2
2=-2/3x
x= -3
(-3,0)
Hope that helps
So this is the volume of a cylinder:
V=hπr^2 to solve for h, divide both sides of the equation by πr^2
h=V/(πr^2)
The answer to the equation is 12.