Determine the real values of x that causes the given function to be: a) zero
b) undefined
c) positive
d) negative
(i) f(x)=(x -8)^3/|x+1|

(ii) f(x)=((x-4)^2 (x-7)^5 )/(x+6)^1/2

(iii) f(x)=(x^2 -9)/ (4x^2 +1)

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?