Find the domain of f(x).f(x) = 
A. {x? x is a real number and x ? -7}
B. {x? x is a real number and x ? 7}
C. {x? x is a real number and x ? -3}
D. {x? x is a real number and x ? 3}
Answer: D
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Solve the problem.For what value of b is the volume of the ellipsoid 
equal to 7??
A. b = 
B. b = 
C. b = 
D. b = 
Find all integer factors of the given number.23
A. -23, -11, -7, -3, -2, -1, 1, 2, 3, 7, 11, 23 B. -23, -11, -7, -4, -2, -1, 1, 2, 4, 7, 11, 23 C. -23, -1, 1, 23 D. -23, -11, -2, -1, 1, 2, 11, 23
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
Simplify the exponential expression.
2
A. 
B. 
C. 
D. 