Use a right triangle to write the expression as an algebraic expression. Assume that x is positive and in the domain of the given inverse trigonometric function.cos(tan-1 x)
A. x
B. 
C. 
D. 
Answer: B
Mathematics
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Use the Comparison Test to determine whether the improper integral converges or diverges.
A. converges B. diverges
Mathematics
Find the indicated probability.A sample of 4 different calculators is randomly selected from a group containing 10 that are defective and 37 that have no defects. What is the probability that at least one of the 4 calculators in the sample is defective?
A. 0.630 B. 0.616 C. 0.100 D. 0.370
Mathematics
Graph.y = 
x + 4
A. 
B. 
C. 
D. 
Mathematics
Find the perimeter. Use 3.14 for ?.
A. 46.26 ft B. 74.52 ft C. 56.52 ft D. 28.26 ft
Mathematics