Plot the complex number in the complex plane.2i
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Simplify the expression without using a calculator.2-3
A. 8
B. 
C. -8
D. 
Mathematics
Write the equation of the graph after the indicated transformation(s). The graph of y = x2 is vertically stretched by a factor of 6, and the resulting graph is reflected across the x-axis.
A. y = -6x2 B. y = 6x2 C. y = 6(x - 6)x2 D. y = (x - 6)2
Mathematics
Solve the problem involving direct or inverse variation.If x varies inversely as y2, and x = 3 when y = 15, find x when y = 3.
A. x = 5 B. x = 45 C. x = 75 D. x = 27
Mathematics
The solution of the system 
is
Select the correct answer.
?
A. 
B. 
C. 
D. 
E. none of the above
Mathematics