Assume that production cost of n rackets is $C. It is given that C is the sum of two parts. One part varies directly as n^3 and the other part varies directly as n^2. When n = 42, C = 2940 and when n = 63, C = 7938.
Express C in terms of n.
Variation
2011-04-22 4:56 am
回答 (1)
2011-04-22 8:10 am
收錄日期: 2021-04-23 20:44:34
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