Using the appropriate right triangle, find the exact value of the trigonometric expression.sec 45°
A. 1
B. 
C. 
D. 
Answer: C
Mathematics
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Solve using the multiplication principle.6x = 48
A. 42
B. 288
C. 8
D. 
Mathematics
Answer the question.f(x) = 
Is f continuous at x = 0?
A. Yes B. No
Mathematics
Use these sets to find the following. Identify any disjoint sets.Let U = {9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19}, M = {9, 11, 13, 15}, 
and 
(R ? N) ? M'
A. N, or {10, 12, 14, 16, 18} B. M, or {9, 11, 13, 15} C. ?; M' and (R ? N) are disjoint sets. D. {9, 10, 12, 14, 16, 18}
Mathematics
Write interval notation for the graph.
A. [2, 6] B. (2, 6) C. [-6, -2) D. [-6, -2]
Mathematics