Evaluate the expression x - y for the given values of the variables.x = -4, y = 5
A. -9
B. 9
C. -1
D. 1
Answer: A
Mathematics
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Provide an appropriate response.Graph y = -tan x and its derivative together on 
. Is the slope of the graph of 
ever positive? Explain.
What will be an ideal response?
Mathematics
Find all real and imaginary solutions.x3 + 2x2 + 9x + 18 = 0
A. {-2, ±3i} B. {-3i, ±2i} C. {-3, ±2i} D. {-2i, ±3i}
Mathematics
Draw the graph of the equation.x2 - 4y - 4x = 0
A. 
B. 
C. 
D. 
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Solve the equation.12d2 + 28d + 15 = 0
A. - 
, - 
B. - 
, - 
C. 
, 
D. 
, 
Mathematics