x2y = k (constant) so 36 x 2 ie 72 is the constant. If x = 3 then y = 72/9 = 8
2
The statement "y varies inversely as the square of x" means that in function form y(x) = k/x2, where k is an (initially) unknown constant. The second condition can be written in algebraic form as 4 = k/32 ; or k = 4 X 9 = 36; Then y(2) = 36/22 = 9.
y is 12
I'm pretty sure the answer is: C= de3k/ √m (C equals d times e cubed times k, divided by the square root of m).
x = 24
25
1
2
80
y varies inversely as x2 so y = c/x2 for some constant c. When x = 5, y = 4 So c = x2y = 100 that is y = 100/x2 Then, when x = 2, y = 100/4 = 25
3
290
The statement "y varies inversely as the square of x" means that in function form y(x) = k/x2, where k is an (initially) unknown constant. The second condition can be written in algebraic form as 4 = k/32 ; or k = 4 X 9 = 36; Then y(2) = 36/22 = 9.
Yes it does. That's correct.
y is 12
I am assuming that k is the constant of proportionality so that f = k*a*t/b2 = 3*4*6/22 = 18
xy = 8 or y = 8/x