What is the area of half of a circle with a diameter of 3.5cm, round to the nearest hundredth, if necessary?
a. 38.47 cm2
b. 19.23 cm2
c. 9.62 cm2
d. 4.81 cm2

I think it is A (38.47)

Step-by-step explanation:

I believe this because I had a math qouiston like this and when I found this A was the only comen answer and when I clicked on my 38.47 I was right

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option