Solve the problem.A spherical water tank with an inner radius of 5 m has its lowest point 3 m above the ground. It is filled by a pipe that feeds the tank at its lowest point (see figure). Neglecting the volume of the inflow pipe, how much work is required to fill the tank if it is initially empty? Express the answer in terms of ?. 
A. 
? J
B. 
? J
C. 
? J
D. 
? J
Answer: B
Mathematics
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Give the symbol that represents the portion of the line named and draw a figure showing just the portion named.
Ray QS
A. 
B. 
C. 
D. 
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Graph the function.y = csc 
A. 
B. 
C. 
D. 
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Give the domain and range of the relation.y = x2 + 6
A. domain: (-?,?); range: (-6, ?) B. domain: (6, ?); range: (-?, ?) C. domain: (-6, ?); range: (-?, ?) D. domain: (-?, ?); range: [6, ?)
Mathematics
Determine if the sequence is arithmetic. If the sequence is arithmetic, find the common difference.an = n(n - 3)
A. yes, -3 B. yes, 1 C. no D. yes, 3
Mathematics