Helppp plzz! Four shapes are listed below.

I. Triangle
II. Parallelogram
III. Pentagon
IV. Hexagon

Which of these are possible cross sections of a cube?

A. I and II

B. I, II, and III

C. I, II, and IV

D. I, II, III, and IV

the answers D all of them

Step-by-step explanation:

When a plane intersects a cube there is a variety of shapes of the resulting cross section.

a single point (a vertex of the cube)

a line segment (an edge of the cube)

a triangle (if three adjacent faces of the cube are intersected)

a parallelogram (if two pairs of opposite faces are intersected – this includes a rhombus or rectangle)

a trapezium (if two pairs of

a pentagon (if the plane meets all but one face of the cube)

a hexagon (if the plane meets all faces of the cube)

a pentagon (if the plane meets all but one face of the cube)

a hexagon (if the plane meets all faces of the cube)

The last five of these (the non-degenerate cases)

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50