Solve the problem.The following points form a quadratic relationship: (1, 5.0), (2, 4.4), (3, 4.3), (4, 4.2), (5, 4.6), (6, 4.8), 
(8, 6.2). The x-coordinates are the years a particular company has been in operation and the y-coordinates are the profit, in millions, for that year. Use quadratic regression to estimate the profit in the ninth year.
A. 6.48 million
B. 7.19 million
C. 7.38 million
D. 4.47 million
Answer: B
Mathematics
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Solve the problem.The table below shows the number of people testing positive for a certain disease amongst those who do have the disease and amongst those who don't. Use the table to answer the question. 
What percentage of those that have the disease tested positive?
A. 89% B. 9.3% C. 91.1% D. 12%
Mathematics
Find the limit, if it exists.
A. 4
B. 4
C. 0
D. Does not exist
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. y6
B. y3
C. 
D. y
Mathematics
Use analytical methods to solve the equation.1 + 
= 
A. -5, 6
B. -6, 5
C. - 
, 
D. 5, 6
Mathematics