Question

If z varies directly as y^(2) and inversely as x, which of the following must be constant?
A. xy^(2)z
B. y^(2)z / x
C. xz/y^(2)
D. z/xy^(2)

Answer 1

just the same ques as your last one.

Answer 2

ummm...

Answer 3

The product of the things that vary inversely is always constant...

Answer 4

are you changing pics ever other second? or some kinda screensaver you have put on? -_-

Answer 5

every*
@kryton1212

Answer 6

@shubhamsrg haha i have nothing to do xD

Answer 7

@kryton1212 So is the hint I gave you fine?

Answer 8

@ParthKohli is it always true?

Answer 9

@kryton1212 Yup.

Answer 10

@ParthKohli thanks:)

Answer 11

So what is the product of the things that vary inversely here?

Answer 12

\[z=\frac{ky ^{2}}{x}\]
where k is a constant of proportionality. Solve for k to find the solution.

Answer 13

wait a minute, let me check it again

Answer 14

Grr, I read the question wrong.

Answer 15

...

Answer 16

If you have a direct proportion, then the division is constant.
If you have an inverse proportion, then the product is constant.

So, in this question, ...

Answer 17

Am I confusing you?

Answer 18

nope, thank you very much, you have given me a very big hint.

Answer 19

I hope you understood. If so, you're welcome!

Answer 20

is it B?

Answer 21

Umm, no.

Answer 22

You could take a look at kropot's post.

Answer 23

C?

Answer 24

@ParthKohli ummm..

Answer 25

Did you try to find k by rearranging
\[z=\frac{ky ^{2}}{x}\]

Answer 26

@kryton1212 C is correct :-)

Answer 27

thanks