Question

Helpppp fast question easy point

Answer 1

We know that the volume of a rectangular prism is length*width*height. So for part a, we just need to multiply those values.

A:

$(8x-4)(x)(2.5x)\\(8x-4)(2.5x^2)\\20x^3-10x^2\\10(2x^3-x^2)$

So, the answer to part A is

10(2x³-x²)

For part B, all we do is plug 2 in for x into our polynomial.

$10(2x^3-x^2)\\10(2(2)^3-(2)^2)\\10(16-4)\\10(12)\\120$

So, the volume is 120 cubic units.

Hope this helps!

Answer 2

Answer:

A:10(2x³-x²)

For part B, all we do is plug 2 in for x into our polynomial.

the volume is 120 cubic units.