What are the solution to the equation -3
1 answer:
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Answer:
The vertex of a quadratic equation corresponds to the point where the maximum or minimum value is located.
If the function has a positive leading coefficient, the vertex corresponds to the minimum value.
If it has a negative leading coefficient, the vertex corresponds to the maximum valuevalue
If the vertex is located at
(–2, 0)
The possibilities are
y = (x-2)^2
or,
y = - (x-2)^2
Since the problem tells us the answer, we adopt the positive values
Answer:
y = (x-2)^2
See attached picture
Answer: 2.28 %
Step-by-step explanation:
Given : Mean :
Standard deviation :
The formula to calculate the z-score :-
For x = 72
The p-value =
In percent,
Hence, the percentage of pediatricians work more than 72 h per week = 2.28 %