Question

Ok, sanity check. I'm calculating the surface area of a torus. I'm pretty far into it (see image). Am I on the right path?

Answer 1

Yes you are.

Answer 2

I need help as well

Answer 3

How can I upload my picture for this website?

Answer 4

Sorry, @Zerrena27, I just got back or I'd have answered sooner. There's an Attach File button at the bottom of the box you've been typing in. Just press that, and browse to where you've saved the file, and hit open. Probably best to start a new question though, so things don't get cluttered.

Answer 5

oh ok thanks, but I meant for my profile

Answer 6

Some one already helped me

Answer 7

Ha! Well now I feel silly. :)

Answer 8

No your a lifesaver! lol

Answer 9

I do k12, do you?

Answer 10

I've been to their site, but haven't spent too much time there. I'm pretty busy with just the curriculum at school.

Answer 11

I need help with a math problem

Answer 12

Ok.

Answer 13

Which decimal is equivalent to 8 9/12 ?

A.
8.12

B.
8.34

C.
8.75

D.
8.9

Answer 14

I put D. Is that right?

Answer 15

Ok, well, let's look at the numbers they're asking for. can you reduce the fraction?

Answer 16

I'll try

Answer 17

84/12?

Answer 18

Not very sure.

Answer 19

Nope. Ok, let's look at this first: \[8\frac{ 9 }{ 12 }\]Or better yet, let's just look at \[\frac{ 9 }{ 12 }\]

Answer 20

ok, then what

Answer 21

What is the largest number you can put into 9 *and* 12 without a remainder?

Answer 22

Um... 24? no what can 9 go into 24?

Answer 23

I, feel stupid

Answer 24

Like this:\[9\div?=\]
\[12\div?=\]There is one number that you can put in place of the question mark for both of them, and not get a remainder.

Answer 25

NO! You shouldn't ever feel stupid for not knowing something. You can learn it.

Answer 26

Give me a second, I'll draw something.

Answer 27

By the way, you said I was on the right path for calculating the surface area of a torus using techniques from Calculus III, when we're going over fractions. I suspect that means you haven't been entirely honest with me (which I'll let slide, because I understand the pressure). In the future, however, just remember, there are lots of us here willing to help. We like to, and won't judge you for it. You're here, which I have to think means you want to learn. Are we good?

Answer 28

I think I got the answer C.

Answer 29

Yes, we thank you. And sorry for not being honest. Will you be later today?

Answer 30

Pretty much all night.

Answer 31

I meant to are.

Answer 32

And again tomorrow morning. I've got finals coming up.

Answer 33

Cool, I should be here around 5:00 ok and if not I'm sorry. well bye.

Answer 34

Sounds good. Good luck. BTW, if you haven't been there already, check out khanacademy.com. There are a TON of great video and exercises that'll get you very far. I managed to teach myself trig and much of calculus there.