Answer:
ways
Step-by-step explanation:
Given that a shelf contains n separate compartments. There are r indistinguishable marbles
The marbles are identical so they can be placed in any order.
Let us consider the places available for placing these r marbles
No of compartments available =n
Marbles to be placed = r
Since marbles are identical and order does not matter
number of ways the r marbles can be placed in the n compartments
= nCr
=
Answer:
11.46
Step-by-step explanation:
used this :) https://www.google.com/search?sxsrf=ALeKk03lL3HDnsDXCU4rkhwJr9njnWMh6A%3A1585368558696&ei=7s1XvugKoGyytMPz9SjmAc&q=area+of+a+circle+using+circumference+calculator&oq=area+of+a+circle+using+cir&gs_lcp=CgZwc3ktYWIQARgBMgIIADICCAAyAggAMgIIADIGCAAQFhAeMgYIABAWEB4yBQgAEM0CMgUIABDNAjIFCAAQzQIyBQgAEM0COgQIABBHUPGNAVjTpAFg_LIBaABwAngAgAGbAYgB7gaSAQM3LjOYAQCgAQGqAQdnd3Mtd2l6&sclient=psy-ab
Radius = Diameter ÷ 2
Radius = 10 ÷ 2 = 5
.
Volume = πr²h
Volume = π(5)² (20) = 500π cm³
.
Answer: 500π cm³
Answer:
Step-by-step explanation:
2πr/4=2π
r/4=1
r=4 cm
Answer:
cubic feet
Step-by-step explanation:
Let r be the radius of cone and h be the height of cone.
Radius of cylinder=r
Height of cylinder=h
Volume of cone=
We have to find the volume of cylinder.
We know that
Volume of cone=
Volume of cylinder=
Using the formula
Volume of cylinder=
Hence, the volume of cylinder= cubic feet
