Question

If a sphere has a radius of 2 untis ,then what is the volume of half of the sphere?
A.) 32/3π cubic units
B.)16π cubic units
C.)16/3π cubic units
D.)64/3π cubic units

Answer 1

Volume of Hemisphere=(4/6) Pi r^3
Thus, (4/6)*Pi*2^3=(16/3)*Pi

Answer 2

i explained this to you already. use the formula i provided earlier

Answer 3

i though this was a different kind of problem

Answer 4

are you sure i use the same formula

Answer 5

yes, volume of the whole sphere is 4/3 pi r ^3. so volume of half the sphere is half of 4/3pi r^3

Answer 6

man, you just need to relax, everything is better than you could possibly imagine :) so, just go outside, chill a bit, ride a bike or something. You could also go horseriding.

So mate, nothing to worry about, forget your homework. School is just there to confuse you.

:)

Answer 7

okay i thought i was doing a different problem so i needed a different formula...thanks again

Answer 8

just pause for a second and think about what you are trying to solve. and you are welcome BTW. wayofaway's answer is correct.

Answer 9

yes thanks and i didn't even see a answer lol

Answer 10

you are welcome.

Answer 11

hey can you check one of my answer on another problem?

Answer 12

sure.

Answer 13

(-3+16i)+(-6-4i)
A.)-9+12i
B.)9+12i
C.)3+200i
D.)-9+20i
I think its A but can someone check me?

Answer 14

right

Answer 15

its A

Answer 16

yup. add the real parts and add the imaginary parts separately.

Answer 17

yayyy haha thats what my teacher said lol

Answer 18

okay great!