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January 28, 2015

January 28, 2015

Posted by **piper** on Wednesday, April 7, 2010 at 9:54pm.

C= (a/q) + b

where a and b are positive constants

a.Find the rate of change of C as q increases. What are its units?

b. Currently, 5000 phones are being made and production is increasing at a rate of 100 cell phones per week. How fast is the average cost changing if a = 200000? Is the average cost increasing or decreasing?

- math -
**San**, Monday, October 31, 2011 at 4:42pma. C'=-a/q^2 Units: dollars per cell phone unit

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