I think it is A
sorry if it is wrong!
Step-by-step explanation:
Here you go i think its good
Answer: The 500 NYSE stocks that current prices were collected from
Step-by-step explanation:
The sample of interest simply means a representation of the population. With regards to the information given pertaining to the question, the sample of interest will be "The 500 NYSE stocks that current prices were collected from".
The 500 NYSE stocks represents the total NYSE stocks that are available.
Let

Then

and solving for x gives






By the quadratic formula,

but x must be a positive number, so only the positive square root solution is valid.

We identify a = c = 3 and b = 2, so a + b + c = 8.
As you want to find angle A
Just get to know one thing that
The two given lengths 6,8 are opposite side and adjacent side
so angle A can be get by tan(A)
so Angle A = tan-1(6/8)