i need help with this problem.
15=4/3piex^3
thats fifteen equals four thirds pie x to the third power
What does x equal?
I have the right answer it should come to approximatley 1.5 but i have no clue how to get the answer.
2006-09-14 11:34:23 · 9 answers · asked by Vicky Bendal 1 in Science & Mathematics ➔ Mathematics
15 = (4/3)pi x^3
Multiply both sides by 3/4
15(3/4) = pi x^3
45/4 = pi x^3
Divide both sides by pi
(45/(4pi)) = x^3
Take the cubed root of each side
cube root (45/(4pi)) = x
1.5 = x
2006-09-14 11:38:12 · answer #1 · answered by MsMath 7 · 3⤊ 3⤋
15=4/3 pie x^3
15 = 1.3333333.......(pie) (x^3)
15 = 1.3333333.......(3.41592654) (x^3)
simplify
15 = 4.188790205 (x^3)
x^3 =15/4.188790205
x^3 =3.58098622
Taking cube root
x = (3.58098622)^(1/3)
with the help of calculator
x=1.529915871 = 1.53 app
2006-09-14 18:45:51 · answer #2 · answered by Amar Soni 7 · 0⤊ 1⤋
15 = 4/3 pi*x^3
Multiply by 3/4: 3/4*15 = pi*x^3 = 45/4
Divide by pi: x^3= 45/(4*pi)
Take the cube root :x= (45/(4*pi))^(1/3) = 1.52991587
2006-09-14 18:38:30 · answer #3 · answered by maegical 4 · 1⤊ 2⤋
15=(4/3)*Pi*x^3
Multiply both sides by 3
15*3=4/3*3 *Pi*x^3
15=4*Pi*x^3
Divide both sides by 4
45/4 =4/4*Pi*x^3
11.25 = Pi * x^3
Divide both sides by Pi
11.25/Pi = Pi/Pi * x^3
3.58098622 = x^3
Take the cube root (equivalent to ^(1/3))
(3.58098622)^(1/3) = x^(3/3)
1.529915871 = x
2006-09-14 18:40:56 · answer #4 · answered by Jenelle 3 · 1⤊ 2⤋
Isolate x just like any other basic algebra problem.
2006-09-14 18:43:17 · answer #5 · answered by spiderspell 3 · 1⤊ 1⤋
15/(Ï(4/3)) = x^3
15*3/(4Ï) = x^3
3.58 = x^3
(3.58)^(1/3) = 1.53 = x
2006-09-14 18:46:36 · answer #6 · answered by Ghidorah 3 · 0⤊ 1⤋
use the formula you may have to do an equation try typing in what lesson your own and see if they tell you how to do it or math help.com
2006-09-14 18:43:07 · answer #7 · answered by cleanheart 5 · 1⤊ 2⤋
confusuing. not the problem thats confusing, but your words. You say you have the right answer, but then you say you have no clue how to get the answer
???????????????????????????????????
2006-09-14 18:37:10 · answer #8 · answered by Anonymous · 1⤊ 4⤋
do your own homework!!!!!!!!!!!!
2006-09-14 18:37:11 · answer #9 · answered by pro_choice_my_right 3 · 0⤊ 4⤋