Find the center of mass of a thin plate covering the given region with the given density function.The triangular region cut from the first quadrant by the line y = -x + 3, with density ?(x) = x
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Answer: A
Mathematics
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Solve the equation for exact solutions.4 cos-1 x = ?
A. 
B. 
C. 
D. 
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What will be an ideal response?
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