SOLUTION: In this equation w = Cr^-2, (yes the r has the power of -2)I need to solve for r. Can you please help?

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Question 246705: In this equation w = Cr^-2, (yes the r has the power of -2)I need to solve for r. Can you please help?
Answer by College Student(505) About Me  (Show Source):
You can put this solution on YOUR website!
A negative exponent stands for a fraction. Therefore, we may re-write the equation from: w=cr%5E-2 to w=%28c%2Fr%5E2%29
.
Now multiply by r%5E2 on both sides, we get:
wr%5E2=c
Then, mulitply by w on both sides:
r%5E2=cw
Then take the square root to find r:
r=%2Bsqrt%28cw%29 and r=-sqrt%28cw%29
.
Done!