Use a calculator to find the value of the expression rounded to two decimal places.cos-1 
A. -0.56
B. -31.95
C. 121.95
D. 2.13
Answer: D
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Use any method to evaluate the integral.
A. sin x - sec x + C
B. cos x + C
C. cos x + sec x + C
D. 
+ C
Answer the question.Any test for a disease has a certain rate of false positives (percentage of those who don't have the disease who test positive) and a certain rate of false negatives (percentage of those who do have the disease who test negative).You would like to determine the chance that a person has the disease given that they have tested positive for the disease. Which of the following will you need to know?
A. The rate of false positives, the rate of false negatives, the incidence of the disease, the number of people being tested B. The rate of false positives, the rate of false negatives C. The rate of false positives, the rate of false negatives, the incidence of the disease D. The rate of false positives, the incidence of the disease
Find the acute angle A. Leave answer in decimal degrees rounded to seven decimal places, if necessary.tan A = 1.985822
A. 116.728445° B. 243.271555° C. 26.7284453° D. 63.2715547°
Evaluate.(-6)2
A. -36 B. -6 C. 6 D. 36