a- 3x/2y
b- x√3/y
c- 1/2xy
d- x√2/2y
2007-05-03 05:42:02 · 8 answers · asked by bianca 1 in Science & Mathematics ➔ Mathematics
√9x / √18y =
3x / √9y √2 =
3x / 3y √2 =
x / y √2 =
x√2 / y √2√2 =
x √2 / y √4 =
x√2 / 2y
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2007-05-03 06:05:01 · answer #1 · answered by SAMUEL D 7 · 3⤊ 0⤋
The answer is D. √9x^2 by √18y^2? = 3x / 3y √2 = x√2 / 2y
2007-05-03 05:51:44 · answer #2 · answered by Anonymous · 1⤊ 0⤋
√9x^2= x√9= 3x
√18y^2= y √18= y√9.2= 3y√2
so √9x^2 by √18y^2= 3x/ 3y√2= x/ y√2
you can multiply it by √2/√2
then x√2/ y√2√2= x√2/2y
so the answer is d) x√2/2y
2007-05-03 05:50:40 · answer #3 · answered by Birim 3 · 1⤊ 0⤋
√9x^2 by √18y^2? = 3x / 3y √2 = x√2 / 2y That means d is the answer.
2007-05-03 05:49:48 · answer #4 · answered by Swamy 7 · 1⤊ 0⤋
√(9x^2) / √(18y^2) = 3x / √(9y^2)√2 = 3x / 3y√2 = x/y√2
by multiplying by √2/√2 you achieve x√2/2y
Answer: D
2007-05-03 05:47:36 · answer #5 · answered by Hugh 2 · 1⤊ 0⤋
1. put everything under a sqrt
2. (sqrt)9/18 = (sqrt)1/2
3. (sqrt)x^2/y^2= x/y (cancels out)
answer = (sqrt)1/2*x/y
which if you do some shuffling, the answer is D.
2007-05-03 05:49:18 · answer #6 · answered by alleleone81 2 · 1⤊ 0⤋
The answer is d
2007-05-03 05:51:44 · answer #7 · answered by Kwame M 2 · 1⤊ 0⤋
DEEEEEEEEEE
2007-05-03 06:03:03 · answer #8 · answered by willingman 3 · 1⤊ 0⤋