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Y is inversely proportional to the cube of x.
Complete the table.

Y is inversely proportional to the cube of x. Complete the table.-example-1

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Answer:

see attached

Explanation:

You want the values that complete the table when y is inversely proportional to the cube of x.

Relation

A proportional relation has the form ...

y = kx

where k is the constant of proportionality.

If y is inversely proportional to x, that is the same as saying y is proportional to the inverse of x:

y = k(1/x)

Here, y is proportional to the inverse of the cube of x:

y = k/x³

The value of k can be found as ...

k = x³·y = (10³)(0.6) = 600

So the relation to use with the table is ...

y = 600/x³

Missing y

The y-value can be found using the equation ...

y = 600/x³

y = 600/5³ = 600/125 = 24/5

y = 4.8

Missing x

Solving the proportion for x gives ...

x³ = k/y

x = ∛(k/y) = ∛(600/75) = ∛8

x = 2

Table

Now, we can fill the table as in the attachment.

Y is inversely proportional to the cube of x. Complete the table.-example-1
User Anshumans
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