Question

Identify the volume and surface area of the sphere in terms of π. Note; The sphere has a radius of 9cm.

Answer 1

the answer is 972.49

Answer 2

v=972.49

Answer 3

surface area is 324.17

Answer 4

do you understand?

Answer 5

Thank you! I somehow came up with 228,906.

Answer 6

and there is also pi after the answer

Answer 7

is that all?

Answer 8

yeah because I didn't know what to do with the 3/4 you divide it and get something like 0.666665, but I don't know what to do with that with the formula afterwards.

Answer 9

so do you need the formula

Answer 10

Answers have to be in terms of >>in terms of π.

Answer 11

Yeah, it's alright. I won't be good at maths like I used to be. Ever. It's just what happens when you end up with seizures and no medication. Kinda hard on the brain to be able to do any problems.

Answer 12

I did not get that volume. Let me check my work.

Answer 13

@joojoe did not show work so I'll start from scratch.

Answer 14

sorry about that, ok wait

Answer 15

A=4πr2

Answer 16

V=4/3πr3

Answer 17

r=9 cm
\[Volume ~of~sphere~V=\frac{ 4 }{ 3 } \pi \times r^3=\frac{ 4 }{ 3 } \pi \times 9^3=?\]
\[Surface~area ~A=4 \pi r^2=4 \pi \times 9^2=?\]

Answer 18

bye if you have any question let me know i would be happy to help

Answer 19

I got 101,736 for area with that formula.

Answer 20

I'm probably wrong..

Answer 21

Options are:
V = 243π cm3; S = 162π cm2
V = 972π cm3; S = 162π cm2
V = 243π cm3; S = 324π cm2
V = 972π cm3; S = 324π cm2

Answer 22

\[A=4~\pi \times 81=324 \pi~ cm^2\]

Answer 23

calculate V

Answer 24

3,053

Answer 25

\[V=4 \pi \times 3 \times 9 \times 9=? cm^3\]

Answer 26

Okay. 33,912 so far, holdon

Answer 27

that working is wrong

Answer 28

305,208 is what I got for the final answer with the formula.

Answer 29

\[V=972 \pi ~cm^3\]

Answer 30

\[v=4/3\Pi r ^{3}\]

Answer 31

do not substitute the value of pi,write it as pi.

Answer 32

yes she know that.

Answer 33

I'm just awful at this, and getting really seizureish, don't like having to try to do it all on my notebook paper.

Answer 34

Just to get it all wrong.

Answer 35

@Calamitylikespie should i write it for you

Answer 36

Getting me teary eyed, and frustrated, I'm to vulnerable to this considering how awful I do at it.

Answer 37

?

Answer 38

It'd maybe help out.