Solve the problem.A 30-m-long chain hangs vertically from a cylinder attached to a winch. Assume there is no friction in the system and that the chain has a density of 10 kg/m. How much work is required to wind the entire chain onto the cylinder using the winch?
A. 8850g J
B. 9000g J
C. 4500g J
D. 300g J
Answer: C
Mathematics
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The _________ property of multiplication states that changing the order when multiplying does not affect the answer.
Fill in the blank(s) with the appropriate word(s).
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Solve for x using an equivalent exponential expression.log5 25 = x
A. 125 B. 2 C. 30 D. 5
Mathematics
Graph the function.y = log5 x
A. 
B. 
C. 
D. 
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Determine whether the lines are parallel, perpendicular, or neither.y = -5x - 9y = 5x + 5
A. parallel B. perpendicular C. neither
Mathematics