Solve the problem.Find the center of mass of the region of density 
bounded by the paraboloid 
and the xy-plane.
A. 
= 0, 
= 0, 
= 4
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 8
D. 
= 0, 
= 0, 
= 
Answer: B
Mathematics
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Identify the triangle as scalene, isosceles, or equilateral.
A. Scalene B. Equilateral C. Isosceles
Mathematics
Compute the dot product u ? v.u = 
, v = 
A. 20
B. 22
C. 53
D.
| 14? |
Mathematics
Simplify the expression.(-8) + 70 ÷ (-7)
A. -18 B. -9 C. 9 D. 18
Mathematics
Divide, simplifying if possible.
÷ 
A. 
B. 
C. 
D. 
Mathematics