I filled this box with 84 and one half inch cubes. What is the volume of the box?

10.5 inches cubed  

Step-by-step explanation:

The volume is the amount of 1 - inch cubes that fill the box. Breaking one cube into 1/2 cubes will require 8 to fill the same space. Since 84 1/2 inch cubes fit in, then 84/8 1 inch cubes will also fit. This is 10.5.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

answe: it will take 4.5 hours for naomi and clair to paint an equal number of square feet

hope i

-lavira : )