ok it wouldnt copy the sphere so u jus have to work with this. the spheres radis is 1/2 in
7. Find the volume of the following figure using the appropriate formula. Use 22 7 for π .
Sphere: V = 4 3 πr 3
A. 44 21 in 3
B. 88 21 in 3
C. 11 21 in 3
D. 22 21 in 3
2007-06-18 05:31:12 · 6 answers · asked by Jaycie C 1 in Science & Mathematics ➔ Mathematics
V = (4/3) pi r^3
if the r = 1/2, then...
V = (4/3)(pi)(1/2)^3
= (4/3)(22/7)(1/8)
= 11 / 21
2007-06-18 05:35:37 · answer #1 · answered by Mathematica 7 · 0⤊ 0⤋
so v of a sphere is v=4/3 times pi times radius to the 3rd power. so. it says use 22/7 as pi so multiply 22/7 times 4/3 and then multiply that by 1/8 because it is the radius to the 3rd power 1/2 times 1/2 times 1/2=1/8 so the answer is 11/21 simplified
2007-06-18 12:42:37 · answer #2 · answered by Anonymous · 0⤊ 0⤋
If the sphere's radius is 1/2", then the volume is 0.5238 in^3. This is not an answer choice.
2007-06-18 12:36:39 · answer #3 · answered by yeeeehaw 5 · 0⤊ 0⤋
Gosh, Jaycie, I'm not sure what it is you're having problems with. The question tells you what "r" is (1/2); and it tells you what to use for Ï (use 22/7). And it tells you what the formula is for figuring out the volume if you know "r" and Ï.
Are you having problems with the concepts of "multiply" and "divide", or what?
2007-06-18 12:41:00 · answer #4 · answered by RickB 7 · 0⤊ 0⤋
C 11 / 21 inch
2007-06-18 12:36:55 · answer #5 · answered by fuegofuego 1 · 0⤊ 0⤋
simple th answer is b and u spelled radius wrong
2007-06-18 12:36:00 · answer #6 · answered by Anonymous · 0⤊ 0⤋