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 %
Which is the simplest form of this algebraic expression? -(6x + 2y) + 4(2x - y)
2 answers:
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Answer:
C
Step-by-step explanation:
Since the figure is a square with all 4 sides equal, then calculate the length of EF and multiply by 4 for the perimeter.
Calculate EF using the distance formula
EF = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = E(0, 5) and (x₂, y₂ ) = F(5, 0)
EF =
=
= =
Hence
Perimeter = 4EF = 4 × ≈ 28.3 → C