annacruzbhwille annacruzbhwille

17-10-2015
Mathematics

contestada

If y varies directly as the cube of x, what is the value of y in the ordered pairs (4, 16)(2, y)?

Respuesta :

konrad509 konrad509

17-10-2015

[tex]y=kx^3\\\\ 16=k\cdot4^3\\ 64k=16\\ k=\dfrac{16}{64}=\dfrac{1}{4}\\\\ y=\dfrac{1}{4}\cdot2^3\\ y=\dfrac{1}{4}\cdot8\\ \boxed{y=2} [/tex]

Answer Link

Otras preguntas

a shop sells three types of boots (football, rugby and hiking) sales are usually in the ratio 6:2:3 last month 24 pairs of football boots were sold how many boo

If the half-life of Sulfate-12 is 18 years, how much of a 6 gram sample is left after 2 half-lives?

The data in this table shows the hours of watching television per weekend and the mathematics marks for ten students. 1 6 3 2 10 8 0 4 5 2 11 Hours Watching TV

If I ___________(go) abroad ,I'll bring you presents.

the graph of g(x) ,shown below, is a vertical shift of the graph of f(x) = 2^x. write the equation for g(x).

Identify the point of view used in the main story of 'The Open Window" first-person, third-person omniscient, third-person limited, or a point of view that shif

I need help with this math problem please

If Ryan walks 5 miles in 100 minutes then how far away walk in 113 minutes

A bag contains exactly 50 coins. The coins are either worth 10 cents, 20 cents or 50 cents and there is Atleast one of each. The total value of the coins is $10

How does the Magna Carte affect our lives today?