Question

Shonda made a model of a solid ice cream cone with a spherical scoop of ice cream on top, made out of clay.

Which formulas are needed to calculate how much clay she used?

Choose all answers that are correct. (In these formulas, r represents radius, h represents height, l represents length, and w represents width.)

A.


B.


C.


D.

Answer 1

@amistre64

Answer 2

you may have noticed that nothing posted in your post ....

Answer 3

but if we have a cone and sphere ... then the volume formula for them will be useful to us

Answer 4

A. how do i attch the whole file

Answer 5

take a picture of it and post the picture file, screenshot or something

Answer 6

or just type them in

Answer 7

Shonda made a model of a solid ice cream cone with a spherical scoop of ice cream on top, made out of clay. Which formulas are needed to calculate how much clay she used. Choose all answers that are correct.
A. v =1/3 pi r 2/n
B. v =pi r 2/h
C. v = Iwh
D. v = 4/3 pi r 3
( in these formulas, r represents radius, h represents height, and l represents length and the w represents the width.)

Answer 8

thats better

now, what do you recall of the volume formulas for a sphere and a cone?

Answer 9

A and D

Answer 10

good, and C is a box, B is a cylindar which is technically part of A

B may or maynot be an answer choice depending on how they are grading it

Answer 11

so what you mean technically part of A

Answer 12

the volume of a cone is 1/3 the volume of its representative cylindar.

hence:

cylindar = pi r^2 h
cone = 1/3 cylindar = 1/3 pi r^2 h

Answer 13

so it is a and d right

Answer 14

@amistre64

Answer 15

a and d for sure, but the way the question is worded, b may or maynot be included ... i cant be certain of it

Answer 16

Two spherical balloons are filled with water. The first balloon has a radius of 3 cm, and the second has a radius of 6 cm.

How much more water is in the larger balloon than in the smaller balloon?
Use 3.14 to approximate pi, and express your answer in the hundredths.

Answer 17

can you help me

Answer 18

use the volume formula for the sphere ... wht do we get?

Answer 19

which one do i do first 3 or 6 radius

Answer 20

both of them, since we need to know the difference between them

Answer 21

or we could try to work out a general formula like:

V1 = 4/3 pi r1^3
V2 = 4/3 pi r2^3

V1 - V2 = 4/3 pi (r1^2-r2^3)

Answer 22

i thought they were both cubed

Answer 23

yeah, slip of the fingers :)

Answer 24

so it is 791.28

Answer 25

@amistre64

Answer 26

4/3 (3.14) (6^3-3^3)
http://www.wolframalpha.com/input/?i=4%2F3+%283.14%29+%286%5E3-3%5E3%29

yep

Answer 27

gotta brb