Answer:
Option 3rd is correct
The equation has no real number solutions because the discriminant is less than 0
Step-by-step explanation:
Discriminant(D)of a quadratic equation
is given by:

- If D = 0 , real zero of multiplicity 2.
- If D < 0, two zeros that are complex
- if D > 0, then two real zeros that are distinct.
As per the statement:
Anderson uses the discriminant to correctly find the number of real solutions of the quadratic equation:

On comparing the given equation with
we have;
a = 1, b = 4 and c = 8
then;

⇒
By definition;
Discriminant is less than 0
equation does not have real roots
Therefore, the equation has no real number solutions because the discriminant is less than 0
Hopefully that helps you out
Answer:
8 out of 84: 90% decrease
200 out of 238: 16% decrease
Step-by-step explanation:
To find a percent decrease, you first subtract the end number by the initial number. This gives you the change.
ex. 84-8=76
Now you divide the change by the initial number. You'll get a decimal.
ex. 76/84=0.904...
Multiply the decimal times 100, or move the decimal to the right twice.
ex. 0.904... -> 90.4...
Now round to the nearest ones place
ex. 90.4 -> 90%
Answer:
C -3, -2 ,2, 4
Step-by-step explanation:
The range is the output values, or the y values
-3, -2 ,2, 4 are the output values
You have to divide
9.1\7 is 1.3
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