Question

Calculus Help!!

Answer 1

@Vincent-Lyon.Fr

Answer 2

Any ideas? I know we have to integrate from one bound to another and I know the lower is 6, but what is the upper?

Answer 3

are you trying to find the upper and lower limit
or the upper and lower function?

Answer 4

to find the upper and lower limit just solve 6=12-x^2/12 for x

Answer 5

the upper function and lower function are basically given because none of the choices differ there

Answer 6

so 6=(12-x^2)/12

Answer 7

no 6=12-x^2/12

Answer 8

the one 12 is not underneath the other 12

Answer 9

ok

Answer 10

I'm just getting this from the functions you have written

Answer 11

ok so that narrows down to either a or b because our bounds are sq rts.

Answer 12

now the rest is just integration

Answer 13

ok give me a moment

Answer 14

Its B!

Answer 15

Another one?

Answer 16

Same idea right but setting 0 as the lower bound and 8 as upper?

Answer 17

And it is either C or d because of the function.... I'll integrate.

Answer 18

D!

Answer 19

we don't have choice in the limits :p

and the radius is y

we just need to find the height of the shell


yep I guess you got it
I didn't do the integration though to check but you seem positive