The answers are:
A. <span>12x8 + x + 2
B. 3x2 - 2x - 7</span>
You multiple (2/3)*96= 64
The add 12 so 12+64= 76
Then add 96+96+76+76=344
Calculate the volume of both the prism and the cubes:
Prism:
Volume = 20 x 2 x 3.25 = 130 cubic inches.
Volume of cube:
Volume = S^3 = 1/4^3 = 1/64 ( 0.015625)
Divide the area of the prism by the area of the cube:
130 / 1/64 = 130 * 64 = 8,320
It would take 8,320 cubes to fill the prism.
B.) f(x)=(x^2-3)^2
a.) f(x)= (x^2+6)(x^2+5)