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C)3.25
195÷60=3.25
every min is 60 seconds
The answer is 248!grains I think this one I think is easy
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.
The answer is 5 because that is the number that 4 corresponds to