Mean 60 - 2(0.9) = 58.2
58.2 is 2 standard deviations from the mean.
1/5 is greater because
10/50
20/100
15% is only 15/100
Answer:
Here is a link to the answer sk3828su.com
Answer:
The discriminant of f is 92, and it has no real zeros
Step-by-step explanation:
The discriminant of a quadratic is
, where the quadratic is in the form
. The discriminant of this one is therefore:

Since the square root of a negative number is imaginary, this quadratic has no real number zeros. Hope this helps!