Evaluate the function below for x=3
f(x)= 2x^3-x^2-4x+9

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14