Respuesta :

Answer:

Step-by-step explanation:

[tex]y=k/x^{2}[/tex]

when y=4, x=5. Therefore:

[tex]4=k/5^2[/tex]

[tex]k=100\\[/tex]

If  [tex]k=100, x=10 \\[/tex]

then [tex]y=100/10^2[/tex]

y=1

Answer:

The value of x when y = 9 is x = 2 or x = -2

Step-by-step explanation:

Given that value of y varies inversely as the square of x, and y=4, when x=3.

Therefore the initial statement is:

[tex]y x \frac{1}{x^{2} }[/tex]