Step-by-step explanation:
V= π r^2h
^
Pi
First you need the radius, if the diameter is 10inches divide by 2 = 5 inches, that's your radius.
π(5inches)^2 times (20 inches)
firsr work out 5^2= 5x5= 25
π(25inches) times (20inches)
25x20=500π inches
500π =1,570.7963267948966192313216916397514420985
which rounds to 1,570, the first one is your answer
Answer:
Subtract 5 from both sides:
Divide both sides by 3:
For all the questions?
138.37 gram
Formula of density
density = mass/ volume
given
volume = 202 mL
density = 0.685g/mL
using these values in Formula of density
0.685g/mL = mass/ 202 mL
mass = 0.685g/mL * 202 mL = 138.37 gram
Thus, weight of liquid is 138.37 gram to the nearest hundredth.
Number of combinations
= 5C2 * 7C3
= 10 * 35
= 350.
Hence there are 350 possible ways.
P.S.
5C2 = 5! / (2!3!) = 120 / (2 * 6) = 10.
7C3 = 7! / (3!4!) = 5040 / (6 * 24) = 35.