Classify the angle as acute, obtuse, right, or straight.
A. Acute
B. Right
C. Straight
D. Obtuse
Answer: A
Mathematics
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Perform the indicated operation. Express your answer in simplest form.
- 
A. 
B. 
C. 
D. 
Mathematics
Find the solution or solutions, if any exist, to the system.
A. infinitely many solutions of the form x = -7 - 
z, y = 
z, z = z
B. infinitely many solutions of the form x = 7 - 
z, y = 2z, z = z
C. infinitely many solutions of the form x = -7 - 
z, y = 2z, z = z
D. infinitely many solutions of the form x = 7 - 
z, y = 
z, z = z
Mathematics
Find all values of the variable for which the rational expression is undefined.
A. 8 B. 0 C. None D. -8
Mathematics
Solve the equation.
= 
A. {2, -1} B. {4, 1} C. {4, -1} D. {2, 1}
Mathematics