Perform the indicated operation and simplify if possible.
(
+ 
)
A. 7
+ 49
B. 21 + 49
C. 49
+ 7
D. 7
+ 7
Answer: D
Mathematics
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Find the average value of the function 
over the plane region R.
and R is the triangle with vertices 
, 
and 
.
?
A. ?5
B. ?
C. 25
D. ?
E. 
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Find the partial fraction decomposition for the rational expression.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
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Multiply.(x - 5)(x + 5)(x2 - 25)
A. x4 - 50x2 + 625 B. x4 - 625 C. x4 - 25x2 - 625 D. x4 - 10x2 + 25
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Determine whether the lines through each pair of points are parallel, perpendicular, or neither.(-2, 9) and (-8, 25); (8, 7) and (5, 15)
A. neither B. parallel C. perpendicular
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