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Use the decibel scale to answer the question.How does the intensity of sound form a concert speaker at a distance of 1 meter compare to the intensity at a distance of 900 meters?
A. Factor of 2700 weaker at 900 m. B. Factor of 10900 weaker at 900 m. C. Factor of 900 weaker at 900 m. D. Factor of 810,000 weaker at 900 m.
Solve the problem.Find parametric equations for the normal line to the surface 
at the point 
A. 
B. 
C. 
D. 
Determine whether the sequence of vertices is i) a walk, ii) a path, iii) a circuit in the given graph.
B ? F ? G ? C ? F ? B
A. Walk, path, and circuit B. Walk only C. Walk and path D. None of these
Find the volume of the solid generated by revolving the shaded region about the given axis.About the y-axis
A. 
?
B. 
?
C. 
?
D. 14?