Simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the inequality, then graph the solution.-1 < -2z + 5 ? 7
A. (-1, 3]
B. (-3, 1]
C. [-1, 3)
D. [-3, 1)
Mathematics
Simplify the expression.
A. undefined B. tan(4x + ?) C. 0 D. tan(4x - ?)
Mathematics
Find the exact value of the expression if ? = 45°. Do not use a calculator.f(?) = tan ?Find f(?).
A. 
B. 0
C. -1
D. 1
Mathematics
Decide whether the relation is a function.{(-3, 4), (-1, 7), (1, -9), (1, -1)}
A. function B. not a function
Mathematics