Factor the quadratic expression 3x to the 2nd power +9x +6

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

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

The formula to determine energy is e=1/2mv2? what is the formula solved for v?