State whether you believe the two variables are correlated. If you believe they are correlated, state whether the correlation is positive or negative. The age of a textbook and how well it is written
A. Positive correlation
B. Negative correlation
C. Not correlated
Answer: C
Mathematics
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Find the limit, if it exists.
A. 0
B. 4
C. 8
D. Does not exist
Mathematics
Solve.(8 + 
)2 - 16(8 + 
) + 11 = 0
A. -
B. 53
C. 
D. No solution
Mathematics
Solve the system of equations by graphing.
?
?
?
A. (5, 0), (8, 0) B. (5, 5), (8, 0) C. (8, 0), (8, 0) D. (0, 5), (0, 8) E. (5, 0), (5, 0)
Mathematics
The following double-bar graph illustrates the revenue for a company for the four quarters of the year for two different years. Use the graph to answer the question. 
What was the difference in revenue between the fourth quarter of 2009 and the fourth quarter of 2010?
A. $15 million B. $5 million C. $3 million D. $1 million
Mathematics