I have to volume and I need to get the radius.
here is the question a sphere has a volume of 3053.63m*3. What is the radius?
and if you could give a step by step anwser?
2006-09-23 12:52:19 · 4 answers · asked by dylanklassen 2 in Science & Mathematics ➔ Mathematics
Sorry I have the volume and need to get the raduis.The Question is "A sphere has a volume of 3053.63 m*3 .What is the radius" if you could give a step by step anwser.
2006-09-23 12:57:09 · update #1
Doug i did your formula on my calculater but i got 19
2006-09-23 14:35:34 · update #2
V = (4/3)*π*r^3 so r = cube root ((3*V)/(4*π))
Now it's plug 'n play. r = cube root(3*3053.63/4π) which is 9 meters.
Doug
2006-09-23 12:57:59 · answer #1 · answered by doug_donaghue 7 · 1⤊ 0⤋
V = 4 pi r^3 / 3
So: first multiply all by 3
3V = 4 pi r^3
Then divide by 4pi
3V/4pi = r^3
You can calculate this, just pick a calculator
Now, how do you find r? Using the cubic root of 3V/4pi
Whats the cubic root?
Lets put here some examples:
1^3 = 1, so the cubic root of 1 is 1
2^3 = 8, so the cubic root of 8 is 2
Whats the cubic root of 2? its a number between 1 and 2, more or less 1.2, so that this number, to the power of 3 is 2.
Hope this helps
Ana
2006-09-23 20:02:26 · answer #2 · answered by MathTutor 6 · 1⤊ 0⤋
V = (4 Pi/3)r^3
3053.63 = (4pi / 3) * r^3
(305363/100) = (4pi/3) * r^3
(305363/100) / (4pi/3) * r^3
(305363/100) * (3/(4pi)) = r^3
(916089/400pi) = r^3
r = cbrt(916089/400pi)
r = about 9
ANS : r = about 9m
2006-09-23 20:59:07 · answer #3 · answered by Sherman81 6 · 0⤊ 0⤋
the radius is 32.1433 i dont hqve time to give u the step by step answer...good luck....
2006-09-23 20:50:46 · answer #4 · answered by navigator j 2 · 0⤊ 0⤋