Solve the system by inspecting the graph of the equations.12x - 4y = -4y = 3x + 1
A. 
B. 
C. ?
D. 
Answer: B
Mathematics
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Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 15, ? = 180°
A. v = -15j B. v = 15j C. v = -15i - 15j D. v = -15i
Mathematics
Solve the equation.- 
a = -1
A. {7} B. {-9} C. {-8} D. {0}
Mathematics
Perform the indicated operation and simplify. Write the answer in the form a + bi.(12 - 9i) - (1 - 2i)
A. 13 - 7i B. -13 - 11i C. 11 - 11i D. 11 - 7i
Mathematics
Solve the system by the substitution method.
A. (-3, 9) B. (-3, 9), (-9, 3) C. (-3, 9), (9, -3) D. (-3, 9), (-4, 10)
Mathematics