Answer:
8+2x and 3(x+4)-(4+x)
Step-by-step explanation:
2(x+4)=2x+8 interchanged to 8+2x
3(x+4)-(4+x) simplified to
3x+12-4-x collect like terms together 3x-x+12-4=2x+8
Answer:
6510
Step-by-step explanation:
7.75 x 840 = 6510
1. A=(0,4)
2. B=(4,1)
3. Slope=-3/4
Volume for a cone is 1/3 pi * r^2*h, where r is radius and h is height.
We have diameter = 1/2 radius. Thus, radius = 1.5in. We also have volume is 12 in.
Using formula for volume of a cone and plugging in what we know, we have
12 = 1/3*pi*(1.5)^2*h, were solving for h.
To get, h= (12*3)/(pi*(1.5)^2), which is approximately 5.0931in, 5 inches
