Question

help plez

Answer 1

You are probably aware of the formula to calculate the volume of a sphere with radius r:\[V=\frac{ 4 }{ 3 }\pi r^3\]so you only need to convert the diameter (28 cm) to the radius, and put that value into the formula...

Answer 2

thnks @ZeHanz

Answer 3

YW! ;)

Answer 4

i still didnt get it right i need the answer plez

Answer 5

its soooooooo confusing

Answer 6

can u show ur working ? let me see where are u getting stuck

Answer 7

i dont get it at all

Answer 8

just do what zehanz said above :)

Answer 9

just use the formula !

Answer 10

i dont get it

Answer 11

what value did u get for r ?

Answer 12

28

Answer 13

No, 28 is the diameter :(

Answer 14

so 24

Answer 15

\[V=\frac{ 4 }{ 3 } \pi 24^{3}\]

Answer 16

In a circle, the radius is half the diameter, so if the diameter is 28, the radius is 14.
If you want to solve problems such as the above, this knowledge is rather essential, I'm afraid...

Answer 17

im srry just tired forgot to half my problem thnks for correcting me

Answer 18

yw!

Answer 19

\[V=\frac{ 4 }{ 3 } \pi 14^{3}=11494.04032\]

Answer 20

Right! So if you round to the nearest 500, you'll have the answer option of the original problem.

Answer 21

thnks again