Given that y2 is directly proportional to the cube of x and y is always positive. Find the value of. when x = 3 if y = 18 when x =4

A) 27 B) 11.67 C) 29

11.69

Step-by-step explanation:

Given that y2 is directly proportional to the cube of x and y is always positive. then;

y² = kx³

if y = 18 when x =4

18² = k4³

324 = 64k

k  = 324/64

k = 5.0625

To get y when x = 3

Recall

y² = kx³

y² = (324/64)3³

y² = 324/64 * 27

y² = 136.6875

y = √136.6875

y = 11.69

Hence the value of y is 11.69

value of. when x = 3 if y = 18 when x =4

A) 27 B) 11.67 C) 29

answer: i dont know but if you try hard you will get it right : )

step-by-step explanation: