Find the specified domain.For f(x) = x2 - 16 and g(x) = 2x + 3, what is the domain of f - g?
A. (-?, ?)
B. (-4, 4)
C. [4, ?)
D. [0, ?)
Answer: A
Mathematics
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Use the figure to answer the question.This double-bar graph shows the number of male (M) and female (F) athletes at a university over a 
period.
2009201020112012YearWhich year had the greatest number of male athletes?
A. 2011 B. 2009 C. 2010 D. 2012
Mathematics
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 2
B. 
C. 27
D. 
Mathematics
Find the given derivative by finding the first few derivatives and observing the pattern that occurs.
Select the correct answer.
a. ?sinx
b. sinx
c. ?cosx
d. cosx
e. None of these
Mathematics
Factor using the ac-method.48x2 + 28xy + 4y2
A. prime B. (12x + 4y)(4x + y) C. 4(3x - y)(4x - y) D. 4(3x + y)(4x + y)
Mathematics