Solve the problem.If n(B) = 24, n(A ? B) = 5, and n(A ? B) = 42, find n(A).
A. 21
B. 18
C. 23
D. 25
Answer: C
Mathematics
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Find the focus and directrix of the parabola.y = -8x2
A. 
, y = 
B. 
, x = 
C. 
, y = -
D. 
, x = 
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Rewrite the fractions as equivalent fractions with the given LCD.
and 
LCD: 24
A. 
; 
B. 
; 
C. 
; 
D. 
; 
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Solve the problem.In a survey about the number of siblings of college students, the following probability table was constructed: 
What is the probability that a student has at least 2 siblings?
A. 0.79 B. 0.42 C. 0.58 D. 0.21
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Graph the function by starting with the graph of 
and using transformations.f(x) = (x - 5)2 
A. 
B. 
C. 
D. 
Mathematics