Area of a cylinder is the area of the top + the area of the bottom + the area of the wrap-around (lateral)
top: pi*r*r=81pi
bottom: 81pi
lateral: 2pi*r*h=18pi*h, h is unknown, but you don't have to solve it.
add them up: 81pi +81pi + 18h*pi=1850
pi*h=(1850-162pi)/18, (plug this in the volume formula below.)
volume of a cylinder: the area of the base × the height =81pi*h
volume=81[1850-162pi)/18]
use your calculator: V=6036
please double check my calculation by yourself.
Permutation is considered an ordered combination. The general formula for this is:
P(n, r) = n! (n-r)!
where:
n=
Answer:
I would choose the 2nd one because you can get $1,000,000 every day and save without spending any money for every 30 days
Answer:
2
Step-by-step explanation:
Because 2/2 equals 1, and 1 * 2 = 2
