4.7 - Blackboard Learning System 3/29/09 9:48 PM Your...

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Unformatted text preview: Blackboard Learning System 3/29/09 9:48 PM Your location: Assessments › View All Submissions › View Attempt View Attempt 3 of 5 Title: Started: Submitted: Time spent: Problem Set 4.7 March 25, 2009 10:06 PM March 25, 2009 11:25 PM 01:19:30 Total score adjusted by 0.0 Maximum possible score: 10 Total score: 9/10 = 90% Done 1. Provide an appropriate response. A company is manufacturing a new digital watch and can sell all it manufactures. The cost (in dollars) is given by production is increasing at rate of increase in cost. where the production output in one day is x watches. If per day when production is 375 watches per day, find the Student Response A. $75 per day B. $175 per day C. $5 per day D. $10 per day Score: 2. Provide an appropriate response. 1/1 Feedback Given the revenue and cost functions R = 26x - 0.3x2 and C = 3x + 10, where x is the daily production, find the rate of change of profit with respect to time when 20 units are produced and the rate of change of production is 7units per day per day. Student Response A. $149.00 per day B. $98.00 per day C. $156.80 per day D. $77.00 per day Score: 1/1 Page 1 of 5 Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Blackboard Learning System 3/29/09 9:48 PM 3. Find the elasticity of the demand function as a function of p. x = D(p) = Student Response A. E(p) = 1600p(p + 8) B. C. D. Score: 4. E(p) = E(p) = E(p) = 1/1 Feedback Find the elasticity of the demand function as a function of p. x = D(p) = Student Response A. B. C. D. E(p) = E(p) = E(p) = E(p) = 1/1 Feedback Score: 5. Find the elasticity of the demand function as a function of p. http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 2 of 5 Blackboard Learning System 3/29/09 9:48 PM x = D(p) = Student Response A. B. C. E(p) = E(p) = E(p) = Feedback D. E(p) = 1600p(p + 5) Score: 6. Find the elasticity of the demand function as a function of p. x = D(p) = 1/1 Student Response A. B. E(p) = E(p) = Feedback C. E(p) = 1 D. Score: 7. Find the elasticity of the demand function at the given price and state whether the demand is elastic, inelastic, or whether it has unit elasticity. q = D(p) = 400 - p; p = $107 E(p) = 1/1 http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 3 of 5 Blackboard Learning System 3/29/09 9:48 PM Student Response A. 293; elastic B. C. D. Score: 8. ; inelastic ; inelastic ; elastic 0/1 Feedback Find the elasticity of the demand function at the given price and state whether the demand is elastic, inelastic, or whether it has unit elasticity. q = D(p) = ; $60 Student Response A. 1; unit elasticity B. C. D. Score: 9. ; inelastic ; inelastic ; elastic 1/1 Feedback Find the elasticity of the demand function at the given price and state whether the demand is elastic, inelastic, or whether it has unit elasticity. q = D(p) = 600 - 5p; $85 Student Response A. 175; elastic Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 4 of 5 Blackboard Learning System 3/29/09 9:48 PM B. C. D. Score: 10. ; elastic ; inelastic ; inelastic 1/1 Find the elasticity of the demand function at the given price and state whether the demand is elastic, inelastic, or whether it has unit elasticity. q = D(p) = 700e -0.03p; $16 Student Response A. ; elastic Feedback B. 1; unit elasticity C. 0.48; inelastic D. 0.03; inelastic Score: 1/1 Done http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 5 of 5 ...
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This note was uploaded on 04/21/2009 for the course MATH 121 taught by Professor Hamidy during the Spring '09 term at Miramar College.

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