Solve the problem.Find the center of mass of the solid enclosed between the cone with equation 
and the plane with equation 
if the density at any point is proportional to the distance from that point to the axis of the cone.
A. (
, 
, 
) = 
B. (
, 
, 
) = 
C. (
, 
, 
) = 
D. (
, 
, 
) = 
Answer: C
Mathematics
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Solve the differential equation.25y'' - 40y' + 16y = 0
A. y = C1e(4/5)x + C2 e(-4/5)x B. y = (C1 + C2x) e(-4/5)x C. y = Ce(4/5)x D. y = (C1 + C2x) e(4/5)x
Mathematics
Give an appropriate answer.Let
f(x) = -8 and
g(x) = -5. Find
[f(x) - g(x)].
A. -4 B. -8 C. -3 D. -13
Mathematics
Find the x- and y-intercepts. If no x-intercepts exist, state so.f(x) = -x2 - 6x - 10
A. 
, (0, -10)
B. No x-intercepts, (0, -10)
C. 
, (0, 10)
D. No x-intercepts, (0, 10)
Mathematics
Multiply.2(-5)
A. -10 B. 3 C. -3 D. 10
Mathematics