Reduce the rational expression to lowest terms.
A. 
B. 
C. 
D. 
Answer: D
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Solve the system by the substitution method.
A. {(-8, -5)} B. {(8, -5)} C. {(-8, 5)} D. {(8, 5)}
Use the Pythagorean theorem to find the unknown side of the right triangle.
A. 11
B. 
C. 
D. 61
Solve the problem.A bond mutual fund grows by 5% in 2014 and by 10% in 2016. By approximately how much did the fund grow in 2015 so as to increase by a total of 40% during the three year period?
A. 21% B. 25% C. Too little information is given. D. 26% E. 16%
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856