SOLUTION: please help me with this problem.
x^3/2=10.42
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Question 113363: please help me with this problem.
x^3/2=10.42
Found 3 solutions by checkley71, solver91311, VVNRAMESH:
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
x^3/2=125
x^3/2=125
x^3/2=5^3
sqrtx^3=5^3
sqrtx=5 now square both sides.
x=5^2
x=25 answer.
proof
25^3/2=125
sqrt25^3=125
sqrt(25*25)(5*5)=125
25*5=125
125=125
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
I presume you want to solve for x.
. This is equivalent to . In general,
So the first thing to do is to take the cube root of both sides of the equation:
(because 5 X 5 X 5 = 125, and because )
Then you need to square both sides:
. Done.
By the way, the steps I used don't have to be done in that order. We could have squared 125 to get 15625 and then taken the cube root of 15625 to get 25. I did it the way I did because the numbers stayed smaller so the arithmetic was easier.
Hope this helps,
John
Answer by VVNRAMESH(1) (Show Source): You can put this solution on YOUR website!
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