Tell whether or not the relation is a function.{(-5, -7), (-2, -4), (4, -6), (8, 4)}
A. Yes
B. No
Answer: A
Mathematics
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Find the exact value of the expression.sec (-1215°)
A. 
B. - 
C. -1
D. - 
Mathematics
Solve the problem.An experienced bank auditor can check a bank's deposits twice as fast as a new auditor. Working together it takes the auditors 4 hours to do the job. How long would it take the experienced auditor working alone?
A. 12 hr B. 8 hr C. 4 hr D. 6 hr
Mathematics
For the given functions f and g, find the requested composite function value.f(x) = 2x + 2, g(x) = 2x2 + 1;
Find (g ? f)(1).
A. 19 B. 10 C. 33 D. 8
Mathematics
Find the horizontal asymptote(s), if any, of the graph of the rational function.f(x) = 
A. y = - 
B. y = -3
C. y = - 
D. no horizontal asymptote
Mathematics