Decide whether or not the events are commutative.Setting the table and eating dinner.
A. No
B. Yes
Answer: A
Mathematics
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Simplify the rational expressions.
A.
B.
C.
D.
Mathematics
Find the foci of the ellipse.16x2 + 64x + 25y2 - 50y - 311 = 0
A. (1, -6), (1, 2) B. (-5, 1), (1, 1) C. (-7, 1), (3, 1) D. (-6, 1), (2, 1)
Mathematics
Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.tan 720°
A. 0
B. -1
C.
D. undefined
Mathematics
Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the given lines.
?
,
?
?(i) axis; ?(ii) the line
?
A. ;
?
B. ;
?
C. ;
?
D. ;
?
E. ;
?
Mathematics