Add.
(2x^2 + 4 - x^3) + (-4x^2+ 6x^3 – 2)

5x^3 - 2x^2 + 2

Step-by-step explanation:

First, distribute the addition sign to get rid of the parentheses

2x^2 +4 -x^3 -4x^2 +6x^3 -2

then combine like terms

-2x^2 +2 +5x^3

then order them in deacreaing power of x

5x^3 - 2x^2 + 2

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

16.80 times .20= 3.36

step-by-step explanation: