A scientist wants to compare the densities of two cylinders, but one is twice as high and has a diameter two times as long as the other. How should the scientist compare the two densities of the cylinders if he doesn't know the volume of the larger cylinder? If the volume of the smaller cylinder is 30 cm^3, what is the volume of the larger cylinder?

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

you divide them and then you get the answer i took this class this year

step-by-step explanation: