(3a + 7) elevado al cuadrado es.​

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Write an equation for the function that includes the points (2,100)and (3,100)

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)