Show your work

Solve the polynomial by typing it into a graphing calculator and identifying the zeros. Round to the nearest tenth.

-2x^3+8x^2-5x+7=0

SHOW YOUR WORK

x=3.575

Step-by-step explanation:

-2x^3+8x^2-5x+7=0

Since we want to solve it graphically we can use a graphing calculator site like desmos or by using a Ti-89.

So a zero of a function is when it would hit the x-axis, so if we go onto desmos.com/calculator and type in our problem we can see that it hits the x axis at (3.575,0)

So our zero would be 3.575.

x=3.575

.there can be infinite values of m and n that can satisfy the above equation. for each value of m of m or n. there maybe infinite sets of solution for the above

step-by-step explanation:

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