What expression is equivalent to seven square root times two/ five square root Y3 assume Y equals zero

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

What statement is true? 2x^2-9x+2=-1

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?