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 + 1, with density ?(x) = x
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Answer: C
Mathematics
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Evaluate the limit if one exists.
A. 
B. 
C. 
D. Does not exist
Mathematics
Write the first five terms of the arithmetic sequence.an = an - 1 - 2.2; a1 = -14
A. -2.2, -16.2, -30.2, -44.2, -58.2 B. -14, -2.2, -16.2, -18.4, -20.6 C. -15, -17.2, -19.4, -21.6, -23.8 D. -14, -16.2, -18.4, -20.6, -22.8
Mathematics
Find the trigonometric function value for the angle shown.cot ?
A. cot ? = - 
B. cot ? = 
C. cot ? = 
D. cot ? = 
Mathematics
Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form.
+ 
A. 
B. 
C. 
D. 
Mathematics