Evaluate the square root. If the answer is not a real number, state so.
A. 4
B. 256
C. not a real number
D. 
Answer: A
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At what points is the given function continuous?f(x, y, z) = 
A. All (x, y, z) such that x2 + y2 ? 36 B. All (x, y, z) such that x2 + y2 ? 6 C. All (x, y, z) such that x2 + y2 ? 0 D. All (x, y, z)
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
Factor the expression completely.27t4 - 117t3 - 90t2
A. 9t2(3t - 2)(t + 5) B. t2(3t + 2)(9t - 45) C. (27t3 + 18t)(t - 5) D. 9t2(3t + 2)(t - 5)
Find the average rate of change for the function between the given values.f(x) = 
; from 4 to 7
A. - 
B. 
C. 7
D. 2