Simplify the expression.5 - 9
A. 14
B. -14
C. 4
D. -4
Answer: D
Mathematics
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Solve the equation.x2 + 5 = 9
A. {±2} B. {4.5} C. {2} D. {±1}
Mathematics
Solve.x2 + 6x + 9 ? 0
A. [3, ?) B. {-3} C. (-?, -3] ? [-3, ?) D. {3}
Mathematics
Determine the specific solutions (if any) to the equation on the interval [0, 2?).2 cos2? + sin ? - 2 = 0
A. 
, 
B. 0, ?, 
, 
C. 
, 
, 
, 
D. 
, 
Mathematics
Graph the function.y = 2 tan 
A. 
B. 
C. 
D. 
Mathematics