Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the x-axis and the semicircle y = 
A. = 0,
=
B. =
,
= 0
C. =
,
=
D. = 0,
=
Answer: A
Mathematics
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Solve the problem.Find a formula for the distance from the point P(x, y, z) to the x-axis.
A.
B.
C.
D.
Mathematics
Find the equation of the curve described by the given information.Hyperbola: center , vertex
, focus
A. -
= 1
B. -
= 1
C. -
= 1
D. -
= 1
Mathematics
What percentage of the figure is shaded? Round to the nearest tenth of a percent, when necessary.
A. 18.8% B. 37.5% C. 68.8% D. 34.4%
Mathematics
Graph y=x²-3x+2.
Mathematics