Solve.
= 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.Find the center of mass of a tetrahedron of constant density bounded by the coordinate planes and the plane 
.
A. 
= 4, 
= 
, 
= 
B. 
= 2, 
= 
, 
= 
C. 
= 
, 
= 2, 
= 
D. 
= 3, 
= 4, 
= 1
Mathematics
Find the slope of the polar curve at the indicated point.r = -4 + 3 sin ?, ? = 0
A. 
B. 
C. - 
D. - 
Mathematics
Write an equivalent rational expression with the given denominator.8m with denominator m - 3
A. 
B. 
C. 
D. 
Mathematics
The rectangular coordinates of a point are given. Find polar coordinates of the point. Express ? in radians.(-4, 0)
A. 
B. 
C. (4, 0)
D. (4, ?)
Mathematics