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
Answer: B
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Evaluate the integral.
dx
A. 
5/4 + C
B. - 
-3/4 + C
C. 4
5/4 + C
D. 
5/4 + C
Solve the equation f(x) = 0 analytically and then use the graph of y = f(x) to solve the inequalities f(x) < 0 and 
f(x) = 1 - 2 log4(x + 7)
A. {-5}; (-5, ?); (-7, -5] B. {-3}; (-3, ?); (-7, -3] C. {-5}; (-7, -5); [-5, ?) D. {-5}; (-5, ?); (-?, -5]
Solve.On a particular day, the amount of pollution A in the air outside a home located near a factory can be modeled by the expression 
, where t is the number of hours after 12 P.M.(i) Graph the equation 
.(ii) At what time of day was the pollution highest?(iii) What was the highest amount of pollution in the air during the day?(iv) In a sentence, describe the trend in pollution that you observe from the graph.
What will be an ideal response?
Write the expression as a trigonometric function of a positive number.sin (-8.75)
A. sin 8.75 B. -sin 8.75 C. cos 8.75 D. -cos 8.75