Alena is packing a box that has a height of one inch more than the width and a length of three inches more than the width, as shown in the diagram below. write a polynomial expression, in simplified form, that represents the volume of the box.

(i need

The polynomial that represent the volume of the box is

Step-by-step explanation:

we know that

The volume of the box is equal to

we have

substitute in the formula

a. is correct

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²