Simplify the fraction.
A. 
B. 
C. 
D. 
Answer: A
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Write the integer that corresponds to the situation.$232 profit
A. 232 B. -232
Use a Venn Diagram and the given information to determine the number of elements in the indicated set.n(U) = 56, n(A) = 25, n(B) = 24, n(C) = 24, n(A ? B) = 7, n(A ? C) = 5, 
and 
Find 
A. 20 B. 3 C. 4 D. 17
Find the standard deviation of the probability density function to the nearest hundredth.f(x) = 2(1 - x); [0, 1]
A. 0.33 B. 0.24 C. 0.31 D. 0.25
Solve the problem. A reasonable quadratic model for the population of a certain city is found to be 
where B(t) is the population (in thousands) of the city in the year that is t years since 1990. A reasonable quadratic model for the number of residents of that city who were born outside the United States is 
where F(t) is the number (in thousands) of foreign-born residents of the city in the year that is t years since 1990. Let P(t) be percentage of residents of the city who were born outside the United States in the year that is t years since 1990. An
equation for P is P(t) = 
. Use P to predict when the city will have 15.3% foreign-born residents.
A. 2008
B. 2006
C. 2007
D. 2009