If the discriminant of a quadratic equation is equal to -8, there are two complex roots.
<h3>Discriminant of a quadratic equation</h3>
The discriminant is used to determine the nature of quadratic equations.
The formula for calculating discriminant is given as:
D = b^2 - 4ac
If the discriminant is negative, it means that the nature of the solution will be a complex number.
Hence if the discriminant of a quadratic equation is equal to -8, there are two complex roots.
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Answer:
5 hours
Step-by-step explanation:
Given
--- Revenue
--- Overhead cost
Required
Determine the hours for break even
To do this, we simply equate both expressions as follows:

Collect Like Terms


Divide through 24

Expand:

Factorize:




But x can't be negative because it represents time.
<em>So, x = 5 hours</em>
Answer:
It's A!
Step-by-step explanation:
Answer:
(-26, 32)
Step-by-step explanation: