Solve the system.
A. x = 3, y = -2, z = 5
B. x = 0, y = 4, z = 2
C. x = -1, y = 2, z = -3
D. x = 1, y = 2, z = 3
Answer: D
Mathematics
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Evaluate.log21
A. 2 B. 0 C. 1 D. -1
Mathematics
Solve by completing the square.x2 + 4x - 9 = 0
A. {-2 ± 2
}
B. {2 ± 
}
C. {-2 ± 
}
D. {-1 ± 
}
Mathematics
Find all complex solutions for the equation.
+ 
+ 9 = 0
A. 
B. 
C. 
D. 
Mathematics
Find the limit by direct substitution.
?
?
A. 
= 
B. 
= 
C. 
= 
8
D. 
= 
E. 
= 8
Mathematics