Write the expression in standard form.(-3 + 6i) - 8
A. 11 + 6i
B. -11 - 6i
C. 11 - 6i
D. -11 + 6i
Answer: D
Mathematics
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Add or subtract as indicated. Simplify the result, if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression.
A. 
B. 1
C. -1
D. -3
Mathematics
Specify the center and radius of the circle.x2 + 12x + y2 + 8y + 27 = 0
A. center: (6, 4); radius: 5 B. center: (-6, -4); radius: 25 C. center: (6, 4); radius: 25 D. center: (-6, -4); radius: 5
Mathematics
Find the vertex, focus, and directrix of the parabola. Graph the equation.y2 + 12y = 4x - 16
A. vertex: (-5, -6)
focus: (-4, -6)
directrix: x = -6
B. vertex: (-5, -6)
focus: (-5, -5)
directrix: y = -7
C. vertex: (-5, -6)
focus: (-6, -6)
directrix: x = -4
D. vertex: (-5, -6)
focus: (-5, -7)
directrix: y = -5
Mathematics