The data in the figure below represents the annual salaries of 200 professional musicians.
The median salary of this group of musicians is approximately
A. $60,000.
B. $40,000.
C. $50,000.
D. $80,000.
E. none of these
Answer: B
Mathematics
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Find an equation for the ellipse described.Center at (0, 0); focus at (0, -4); vertex at (0, 8)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Graph the function.y = 
sin 
x
A. 
B. 
C. 
D. 
Mathematics
Factor completely. If a polynomial cannot be factored, say it is prime.2x2 + 9x + 18x + 81
A. (2x + 9)(2x + 9) B. (x + 9)(2x + 9) C. prime D. (2x + 9)(9x + 2)
Mathematics
Solve the problem.The size P of a certain insect population at time t (in days) obeys the function 
After how many days will the population reach 1500?
Fill in the blank(s) with the appropriate word(s).
Mathematics