Asked by hasaanen
uppose that for a certain city the cost C, in dollars, of obtaining drinking water that contains p percent impurities (by volume) is given by
C =
120,000
p
− 1200.
(a) Find the rate of change of cost with respect to p when impurities account for 1% (by volume).
(b) Write a sentence that explains the meaning of your answer in part (a).
If impurities increase by this percent, the cost will decrease by $10,000.
If impurities increase 1%, the cost will increase by the absolute value of this amount.
If impurities decrease 1%, the cost will decrease by the absolute value of this amount.
If impurities increase by this percent, the cost will increase by $10,000.
If impurities increase 1%, the cost will decrease by the absolute value of this amount.
C =
120,000
p
− 1200.
(a) Find the rate of change of cost with respect to p when impurities account for 1% (by volume).
(b) Write a sentence that explains the meaning of your answer in part (a).
If impurities increase by this percent, the cost will decrease by $10,000.
If impurities increase 1%, the cost will increase by the absolute value of this amount.
If impurities decrease 1%, the cost will decrease by the absolute value of this amount.
If impurities increase by this percent, the cost will increase by $10,000.
If impurities increase 1%, the cost will decrease by the absolute value of this amount.
Answers
Answered by
oobleck
maybe if you write your function so it makes sense, someone will help.
Use ^ for exponents, as in x^2 or e^x
Use ^ for exponents, as in x^2 or e^x
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