Answer: C Planting soil 1 showed greater variability, since Planting soil 1 MAD is
approximately 1.8 times greater than planting soil 2 MAD. USATESTPREP
Given:
The function is:

To find:
The all the real and non-real roots of the given function.
Solution:
We have,

For roots,
,


Taking square root on both sides, we get


![[\because \sqrt{-1}=i]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Csqrt%7B-1%7D%3Di%5D)
The roots of the given function are -7i and 7i.
Therefore, the correct option is B.
10 Inches
A = p q / 2
p = diagonal 1
q = diagonal 2
2A / q = p
Solve for p
180/18 = 10