Evaluate -
given x.-93
A. 58
B. -93
C. 93
D. -58
Answer: B
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Solve.For f(x) = (x + 5)(x - 6)(x - 9), find all x-values for which f(x) > 0.
A. (-?, -5) ? (6, 9) or {x|x < -5 or 6 < x < 9} B. (-5, 6) ? (9, ?) or {x|-5 < x < 6 or x > 9} C. (-?, 6) or {x| x < 6} D. (9, ?) or {x|x > 9}
Find the local extrema of the function, if they exist.f(x) = 
A. Local minimum at (0, -4) B. No local extrema exist C. Local maximum at (0, -4) D. Local maximum at (0, 4)
Solve the system by substitution.-2x = 7y + 17-31 = 3y - 3x
A. 
B. 
C. 
D. 
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