<span>a)
2=(x-2.7)/.5
(2)(.5) = x-2.7
1=x-2.7
x=3.7
-2.5=(x-2.7)/.5
(-2.5)(.5) = x-2.7
-1.25 =x-2.7
x=2.7-1.25 = 1.45
b)
95% of the students' score lie within 2 standard deviation of the mean. Therefore, the top 2.5% corresponds to a z value of 2.
The limits are (2, infinity) --- top 2.5 %</span>
Direct variation is is when the x and y a direct relation
without constants added or subtracted
With being times by each other
so the only one that meets the definite is the first one
y = 0.5x means y is equal to half of x. So you know that every y is directly related to half of x
Unfortunately, I do not go to Harvard Business School so I am unable to solve this complex equation.
Answer:
x=8 is a true solution of the radical equation
Step-by-step explanation:
we have
Solve for x
squared both sides
Convert to factored form
The solutions are x=2 and x=8
<u><em>Verify the solutions</em></u>
For x=2
Substitute in the original equation
----> is not true
therefore
x=2 is not a true solution of the radical equation
For x=8
Substitute in the original equation
----> is true
therefore
x=8 is a true solution of the radical equation
Answer: It is c
Step-by-step explanation:
