Perform the indicated operation and simplify. 
+ 
A. 1
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the equation.
- x = 
- 
A. 
B. 
C. 
D. 
Mathematics
Find the real or imaginary solutions by completing the square.x2 + 4x + 13 = 0
A. {-2 ± 3i}
B. 
C. {2 ± 3i}
D. {1, -5}
Mathematics
Find the unknown value.153 is 45% of what number?
A. 0.29 B. 29 C. 340 D. 3400
Mathematics
Solve by the substitution method.-5x + 9y = -253x + 6y = 15
A. (5, 1) B. No solution C. (4, 1) D. (5, 0)
Mathematics