Unformatted text preview: storm is given by s ( t ) = 42 t, the negative sign indicating that the storm is moving towards Austin. Thus at t = 5, s â€¡ 5 Â· = 410 =6 . Consequently, since speed is always nonnegative, storm speed = 6 mph . keywords: instantaneous speed, derivative 017 (part 1 of 1) 10 points The cost function for Levi Strauss to produce x pairs of blue jeans is C ( x ) = 5000 + 5 x3 100 x 2 + 7 10000 x 3 . Â±ind the marginal cost to Levi Strauss of producing 100 pairs of blue jeans. 1. marginal cost = $18 per pair 2. marginal cost = $19 per pair 3. marginal cost = $16 per pair 4. marginal cost = $20 per pair correct 5. marginal cost = $17 per pair Explanation: By deÂ²nition, the Marginal cost is the derivative, C ( x ), of the cost function C ( x ). Now C ( x ) = 53 50 x + 21 10000 x 2 ....
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 Spring '08
 CLARK,C.W./HOY,R.R
 Limit of a function, Levi Strauss & Co., Miles per hour

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