Question

Two similar pipes are shown.

Similar pipes; left pipe has height 21 feet and radius 18 feet; right pipe has height 28 feet.

The small pipe has a radius of 18 feet and a height of 21 feet while the large pipe has a height of 28 feet. What is the volume of the large pipe in terms of π?

5,376π ft3

18,432π ft3

6,804π ft3

16,128π ft3

Answer 1

@selenamalter

Answer 2

@rizwan_uet

Answer 3

ratio of heights = ratio of radiuses

Answer 4

I got c

Answer 5

let the radius of the bigger cylinder is x
then
21/28 = 18/x
now can you find x???, further i will tell you what to do

Answer 6

24

Answer 7

yes you got it right
now x = 24 is the radius of the bigger cylinder
now can you find its volume directly from formula

Answer 8

I got it down to C & D

Answer 9

v = pi r^2 h = pi (24)^2. 28 = 16,128π ft3

Answer 10

OK can u check my work real quick, Ill medal, your a very big help

Answer 11

ok show it

Answer 12

A neighborhood has provided trash cans to residents to dispose of their waste. All trash cans have a diameter of 1 meter and a height of 0.75 meters. What is the minimum number of trash cans required to dispose of 10 cubic meters of waste?

16

17

50

51

I got C

Answer 13

so is it good, no rush im just asking?

Answer 14

sorry i just recieved a call. so let me check your work

Answer 15

ok no problem

Answer 16

its 17

Answer 17

Thts what I got, I meant B lol.

Answer 18

Another one please?

Answer 19

yes post it

Answer 20

A cylindrical water glass has a radius of 11 centimeters and a height of 10 centimeters. What is its volume?

3,801.33 cm3

1,267.11 cm3

5,575.28 cm3

3,455.75 cm3
I got D

Answer 21

3,801.33 cm3

Answer 22

got it???

Answer 23

A hamster ball has a radius of 15 centimeters. What is its volume written in terms of π?

3,375π cm3

300π cm3

4,500π cm3

2,531π cm3
C

Answer 24

4,500π cm3

Answer 25

A water ride at a local water park has a ride shaped like a cone that acts like a funnel whereby guests swirl around the cone until they drop through its center. There is one ride for adults and a similar, smaller version for children. If the adult ride has a radius of 33 feet and the child ride has a radius of 22 feet, what is the ratio between the volumes of each ride?

27:8

9:6

9:4

3:2
D

Answer 26

this one sucks

Answer 27

y lol