Solve the system by elimination. If the system is inconsistent or dependent, say so.x + y = 2x - y = -4
A. (-2, 4)
B. (-1, 3)
C. (1, 4)
D. empty set solution; inconsistent system
Answer: B
Mathematics
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Evaluate the expression.-73
A. 21 B. -21 C. -343 D. 343
Mathematics
Find the exact value of the expression.sin 
A. 
B. 
C. - 
D. - 
Mathematics
Write the expression in the standard form a + bi.
A. 
+ 
i
B. 
- 
i
C. 
+ 
i
D. 
- 
i
Mathematics
Solve the system.
A. (4, 3), (3, 4) B. (-4, 3), (-3, 4) C. (-4, -3), (-3, -4) D. (4, -3), (3, -4)
Mathematics