Which explains the necessary step to calculate the area of a semi-circle? O Pi times the diameter.
O Radius times Radius times Pi
O (Radius times Radius times Pi) divided by 2
O (Diameter times Pi) divided by 2.

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

y = i/2 xtnop + (3i/2 tnop+ 1)

step-by-step explanation:

the picture is the step by step explanation.

4+4+2x

or

2x+8

step-by-step explanation:

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this