Find the center of mass of a thin plate covering the given region with the given density function.The region bounded by the curves y = ± 
and the lines x = 1 and x = 9, with density ?(x) = 
A. 
= 3, 
= 0
B. 
= 2, 
= 0
C. 
= 5, 
= 0
D. 
= 4, 
= 0
Answer: A
Mathematics
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Perform the indicated operation. Simplify if possible.
- 
A. 0 B. 36 C. 3x D. 6
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Solve the equation graphically.-0.7x - 0.8 = 2Values of -0.7x - 0.8
A. -4 B. 4 C. -2.2 D. -0.8
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Find the partial fraction decomposition for the rational expression.
A. 
+ 
+ 
B. 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
Mathematics
Decide whether the pair of lines is parallel, perpendicular, or neither.9x + 3y = 1215x + 5y = 23
A. parallel B. perpendicular C. neither
Mathematics