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
Find out the what fraction of the sandcastle did they build together .
To prove
Let us assume that the fraction of the sandcastle they build together be x .
As given
Than the equation becomes
L.C .M of (3,7) = 21
solving
Therefore the fraction of the sandcastle did they build together be
Hence proved
Answer:
A. 6 sq. units
Step-by-step explanation:
Area of a triangle can be found with base times height divided by 2
The base is 6 and the height is 2
6x2= 12, 12/2 is 6
A. 6 sq. units
Answer: v(t)= 6500(0.15)^t
Step-by-step explanation:
In order to find the value in years, you would have to determine 15% in the elapsed time. 6500 is the initial amount therefore you would have to multiply it by the 15%+elapsed time.
Answer: ** B **
A. more than 18 minutes
~ B. no fewer than 18 minutes
C. more than 3 hours
D. no fewer than 3 hours
Step-by-step explanation:
