2. y is inversely proportional to cube of x. When x = 2, y = 4.
Find y when x = 4
(3 Points)

y = 0.5 at x = 4

Step-by-step explanation:

According to question,

y is inversely proportional to cube of x i.e.

or

Put x = 2 and y = 4 in above expression to find k.

Now put x = 4 to given equation to find y.

y = 0.5 or 1/2

So, the value of y is 0.5 when x = 4.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

ur mom

step-by-step explanation: