a pizza delivery shop averages 19 minutes per delivery with a standard deviation of 4 minutes. what is the probability that a pi
1 answer:
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Given:
The given equation is
To find:
All the real solutions.
Solution:
We have,
It can be written as
Using zero product property, we get
and
and
and
We know that is an imaginary number because there is a negative sign under the square root.
Therefore, is the only real solution of the given equation.