Answer:
we have
diameter {d}=6.8m
radius (r)=3.4m
height]h}=8.5
now
volume of cylinder=πr²h=π([6.8]/2)²×8.5=
π(3.4)²(8.5) is your answer
First of all, remember if 2 people are walking away from each other at the same speed (ex 4 mph), after 1 mile, they would be 8 miles away. 4 miles south and north. So these trains go away from each other at a total of 150 mph( 67 + 83). So your equation is h = hours, 150h = 600. Divide both sides by 150 to get h = 4. 4 hours is your answer.
V^2+8v+16
(v+4)(v+4)
Do v*v, 4*4, 4*v, 4*v
Simplify
