Let R = the set of real numbers, N = the set of natural numbers, W = the set of whole numbers, I = the set of integers, 
and H = the set of irrational numbers. Answer the question.Is W a subset of Q?
A. Yes
B. No
Answer: A
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Determine the domain and the range of the function.f(x) = x2 - 6x + 5
A. domain: {x|x ? -3} range: {y|y ? -4} B. domain: all real numbers range: {y|y ? -4} C. domain: all real numbers range: all real numbers D. domain: all real numbers range: {y|y ? 4}
Solve.An express and local train leave Grays Lake at 3 P.M. and head for Chicago 50 miles away. The express travels twice as fast as the local and arrives 1 hour ahead of the local. Find the speed of each train.
A. Express's rate = 50 mph and local's rate = 25 mph. B. Express's rate = 25 mph and local's rate = 12.5 mph. C. Express's rate = 60 mph and local's rate = 30 mph. D. Cannot be determined with information given.
Verify the identity.(1 - cos x)(1 + cos x) = sin2x
What will be an ideal response?
Express as a single logarithm and, if possible, simplify.
ln x - ln 4
A. ln(
- 4)
B. ln
C. ln 
D. ln