REALLY IMPORTANT
The height of a right cylinder is 3 times the radius of the base. The volume of the cylinder is 24 cubic units. What’s the height of the cylinder?

2 units
4 units
6 units
8 units

Step-by-step explanation:

h = 3r

πr²h= 24π cubic units

πr²*(3r) = 24π

π*r³*3 = 24 π

r= 2 units

Height = 3*2 = 6 units

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours