Find the domain of the function. Write the domain using interval notation.f(x) = 
A. (-?, -9) ? (-9, ?)
B. (-?, 0) ? (0, ?)
C. (-?, 5) ? (5, ?)
D. (-?, 9) ? (9, ?)
Answer: D
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Which fraction is between 
and 
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?
A.
?
B.
?
C.
?
D.
?
E.
?none of them
Provide an appropriate response.Solve for x: 5x = 
A. x = 5 B. x = -5 C. x = 2 D. x = -2
Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many solutions.
A. (0, -6) B. Inconsistent C. Infinitely many solutions D. (1, -7)
Find the exact acute angle ? for the given function value.sec ? = 2
A. 60° B. 45° C. 30°