Perform the indicated operation. Round the result to the nearest thousandth if necessary.10.5 × 4.43
A. 46.515
B. 14.93
C. 36.015
D. 6.07
Answer: A
Mathematics
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Solve the problem.Find the center of mass of the region of constant density bounded by the paraboloid 
and the xy-plane.
A. 
= 0, 
= 0, 
= 1
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 3
Mathematics
Find the slope and the y-intercept of the line with the given equation.-6x + 9y = 27
A. Slope 
; y-intercept (0, 3)
B. Slope -1
; y-intercept (0, 3)
C. Slope 1
; y-intercept (0, -3)
D. Slope - 
; y-intercept (0, -3)
Mathematics
Express the number in decimal notation.8.1 × 105
A. 81,000 B. 8,100,000 C. 405 D. 810,000
Mathematics
Write the sum or difference as a product containing only sines and/or cosines.sin(2?) - sin(4?)
A. -2 sin ? cos(3?) B. 2 sin(3?) cos ? C. 2 cos(2?) cos(3?) D. -2 sin ?
Mathematics