Solve the problem.Suppose that the mean salary in a particular profession is $45,000 with a standard deviation of $2,000. What percentage of people in that profession earn less than $48,000?
A. 93.32%
B. 6.68%
C. 1.50%
D. 55.96%
Answer: A
Mathematics
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Determine whether the statement is true or false.The graph of 
+ 
= 1 is a vertical ellipse.
A. True B. False
Mathematics
Given that the polynomial function has the given zero, find the other zeros.f(x) = x4 - 36; -
i
A. 
i, -
, 
B. 
i, -
, 
C. 
i, -6, 6
D. 
i, -
, 
Mathematics
Both a function and its derivative are given. Use them to find the relative maxima.
A. 
B. 
C. 
D. 
E. no relative maxima
Mathematics
Find the indicated roots.Fourth roots of -16; trigonometric form
A. 1 + i, 1 - i, -1 + i, -1 - i
B. 
+ 
i, 
- 
i, - 
+ 
i, - 
- 
i
C. 8
+ 8
i, 8
- 8
i, -8
+ 8
i, -8
- 8
i
D. 2 + i, 2 - i, -2 + i, -2 - i
Mathematics