Find the domain of the rational function.f(x) = 
A. All real numbers except 0
B. All real numbers except -9 and 4
C. All real numbers except 9 and -4
D. All real numbers except 7 and -7
Answer: B
Mathematics
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Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many solutions.
A. (-3, 5) B. (3, -5) C. (-5, -3) D. (5, -3)
Mathematics
Solve the equation.
5x + 3 = 9x - 4
A. 
B. 
C. 
D. 
Mathematics
Write a linear factorization of the function.f(x) = x3 + 2x2 + 2x - 5
A. f(x) = (x + 1)(2x + 3 +
i)(2x + 3 - 
i)
B. f(x) = (x + 1)(2x + 3 +
i)(2x + 3 - 
i)
C. f(x) = (x - 1)(x + 3 +
i)(x + 3 - 
i)
D. f(x) = (x - 1)(2x + 3 +
i)(2x + 3 - 
i)
Mathematics
Complete the identity.
sec ? csc ? = ?
A. 
B. 
C. csc (2?)
D. sec (2?)
Mathematics