What is the square root of negative 16?
-8i
-4i
4i
8i

To find the sqrt of -16, you must first take out i from the equation to make the 16 positive. That equals:

i sqrt16

Then, solve sqrt16 to get 4. It then becomes:

4i

That is the final answer. If you need more help, comment below and I will do what I can.

3 is greater then both of those numbers

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