A cylindrical tank contains 500 galIons of water. A plug is pulled from the bottom of the

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A cylindrical tank contains 500 galIons of water. A plug is pulled from the bottom of the tank, and it takes 10 minutes to drain the tank. The amount A of water in gallons remaining in the tank after 1 minutes is approximated byimage


(a) What is a reasonable domain for A? 


(b) Evaluate 4(1) and interpret the result. 


(c) What are the degree and leading coefficient of A(1)? 


(d) Has half the water drained from the tank after 5 minutes? Does this agree with your intuition? Explain.

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