Answer:
v=3
Step-by-step explanation:
141=-v-8(-8v+6)
distribute -8 into the parentheses
141=-v+ 64v-48
simplify by putting v's together
141=63v-48
add 48 to both sides to get x by itself
189=63v
divide both sides to isolate x
v=3
Answer:
6.50 per mile
Step-by-step explanation:
Step-by-step explanation:
First, you'd get the area of the circle, then multiply it by two (there's two ends to a cylinder)
so (pi)(R^2)
If 8 is the diameter, then 4 is the radius (r=1/2d)
3.14{pi}*16{4 squared}+=50.27
(50.27*2)= 100.54
Now, we need to find the area of the side of the cylinder. We have the given height of 16.8, and now we need to find the length. In order to do that, we must find the perimeter/diameter of the circle with the formula of Pi*Diameter.
if the diameter of the circle is 8, then 3.14*8=25.12.
25.12*16.8=422.016
now we need to add the area of the circles to get total surface area.
100.54+422.016= 522.556cm^2
I hope this helps!
I believe the correct answer is B