Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.12x + 4y = 165y - 24 = -15x
A. Neither
B. Parallel
C. Perpendicular
Answer: B
Mathematics
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Rationalize the denominator.
A. 
B. 5
C. 
D. 
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Solve the quadratic equation by completing the square.z2 + 12z + 13 = 0
A. -6 ± 
B. 6 ± 
C. 6 + 
D. -12 + 
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Find all numbers not in the domain of the function.f(x) = 
A. -3 B. 3 C. 0 D. None
Mathematics
Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 22.5°
A. 
B. - 
C. 
D. - 
Mathematics