Find the specified domain.For f(x) = 7x - 7 and g(x) = 8x + 6, what is the domain of f ? g?
A. [0, ?)
B. (-?, 0)
C. (0, ?)
D. (-?, ?)
Answer: D
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Give the domain and range of the relation.
A. None of these B. domain: {4, 8, 12}; range: {5, 7, 13} C. domain: {4, 7, 12}; range: {5, 8, 13} D. domain: {5, 8, 13}; range: {4, 7, 12}
Find the part.4000% of 397 books
A. 1588 books B. 1,588,000 books C. 15,880 books D. 158,800 books
Find the distance between P and Q.P(y - z, t), Q(y + z, t)
A. 
B. 2
C. 
D. 2
Use Bayes' rule to find the indicated probability.The incidence of a certain disease in the town of Springwell is 4%. A new test has been developed to diagnose the disease. Using this test, 90% of those who have the disease test positive while 5% 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. 0.855 B. 0.386 C. 0.429 D. 0.90