Simplify the expression. Assume that all variables are positive when they appear.
? 
A. -3x
B. 15x2
C. 8x
D. 15
Answer: B
Mathematics
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The equation of an ellipse is given. Put the equation in standard form and sketch the ellipse.16(x - 3)2 + 9(y - 1)2 = 144
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Identify the pair of lines as appearing to be parallel, perpendicular, or intersecting.
A. Parallel B. Intersecting C. Perpendicular
Mathematics
Integrate the function.
dt
A. - 
5+ sec-1
+ C
B. - 
5+ C
C. - 
5+ C
D. - 
Mathematics
Indicate whether the statement is true always, sometimes, or never.The product of a pair of complex conjugates is a real number.
A. Always B. Sometimes C. Never
Mathematics