Solve the equation for solutions in the interval [0°, 360°).sin 2? = cos ?
A. {0°, 120°, 180°, 240°}
B. {15°, 165°, 195°, 345°}
C. {30°, 150°}
D. {105°, 165°, 285°, 345°}
Answer: C
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Fill in the blank.The opposite of 30 = 
.
A. - 
B. 0
C. 30
D. -30
Graph the rational function.f(x) = 
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
Solve the problem.A circle of radius r is inscribed in a square with sides 2r as shown in the figure. Express the total of the shaded areas in terms of r and ? as a completely factored polynomial.
A. r2(2 + ?)(2 - ?) B. ?2(4 - r) C. r2(4 - ?) D. r(2-?)2