Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the parabola y = 81 - x2 and the x-axis
A. 
= 0, 
= 
B. 
= 0, 
= 
C. 
= 
, 
= 0
D. 
= 0, 
= 
Answer: D
You might also like to view...
The current San Francisco cable railway is driven by two large 16-foot-diameter drive wheels, called sheaves. Because of the figure-eight system used, the cable subtends a central angle of 270° on each sheave. Find the length of cable riding on one of the drive sheaves at any given time.
?
?
??a = 16
?
A. 38.7 feet B. 35.7 feet C. 40.7 feet D. 37.7 feet E. 33.7 feet
Write the standard form of the equation of the circle. 
A. (x + 3)2 + (y + 4)2 = 25 B. (x - 3)2 + (y - 4)2 = 25 C. (x - 4)2 + (y - 3)2 = 25 D. (x + 4)2 + (y + 3)2 = 25
Solve the equation by extracting the square roots.3(v + 4)2 = 125
A. v = 4 - 5
or v = 4 + 5
B. v = -4 - 5
or v = -4 + 5
C. v = 4 - 5
or v = 4 + 5
D. v = -4 - 5
or v = -4 + 5
Divide the polynomial by the monomial.
A. 6x + 40x3 + 
B. 6x - 5
C. 6x - 5 + 
D. 10x - 5