4.3 - Blackboard Learning System 3/29/09 9:47 PM Your...

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Unformatted text preview: Blackboard Learning System 3/29/09 9:47 PM Your location: Assessments › View All Submissions › View Attempt View Attempt 1 of 5 Title: Started: Submitted: Time spent: Problem Set 4.3 March 15, 2009 9:31 PM March 15, 2009 10:44 PM 01:12:26 Total score adjusted by 0.0 Maximum possible score: 10 Total score: 8/10 = 80% Done 1. Differentiate. Find f'(x) for f(x) = (5x3 + 4)(3x 7 - 5). Student Response A. f'(x) = 150x 9 + 84x 6 - 75x B. f'(x) = 20x 9 + 84x 6 - 75x C. f'(x) = 20x 9 + 84x 6 - 75x 2 D. f'(x) = 150x 9 + 84x 6 - 75x 2 Score: 2. Differentiate. Find f'(t) if and simplify. 1/1 Feedback Student Response A. B. C. D. Score: 3. 1/1 Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 1 of 6 Blackboard Learning System 3/29/09 9:47 PM Differentiate. Find for y = Student Response A. = Feedback B. = C. = D. = 1/1 Score: 4. Provide an appropriate response. Find for y = . Do not simplify. Student Response A. Feedback B. C. D. Score: 1/1 http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 2 of 6 Blackboard Learning System 3/29/09 9:47 PM 5. Use the product rule to find the derivative. f(x) = (6x + 2) 2 Student Response A. f'(x) = 12x + 4 B. f'(x) = 72x + 24 C. f'(x) = 36x + 12 D. f'(x) = 36x + 4 Score: 6. Use the quotient rule to find the derivative. f(x) = 0/1 Feedback Student Response A. f'(x) = Feedback B. f'(x) = C. f'(x) = D. f'(x) = 1/1 Score: 7. Solve the problem. The demand function for a certain product is given by: http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 3 of 6 Blackboard Learning System 3/29/09 9:47 PM D(p) = . Find the marginal demand D'(p). Student Response A. B. C. D. D'(p) = D'(p) = D'(p) = D'(p) = 1/1 Feedback Score: 8. Solve the problem. The population P, in thousands, of a small city is given by: P(t) = . where t = the time, in months. Find the growth rate. Student Response A. P'(t) = Feedback B. P'(t) = C. P'(t) = D. P'(t) = http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 4 of 6 Blackboard Learning System 3/29/09 9:47 PM Score: 9. 1/1 Solve the problem. The total revenue for the sale of x items is given by: R(x) = . Find the marginal revenue R'(x). Student Response A. R'(x) = Feedback B. R'(x) = C. R'(x) = D. R'(x) = 0/1 Score: 10. Solve the problem. The total cost to produce x units of perfume is cost function. Find the marginal average Student Response A. 144 - Feedback B. 144x + 90 C. 72 - http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 5 of 6 Blackboard Learning System 3/29/09 9:47 PM D. Score: 72x + 90 + 1/1 Done http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 6 of 6 ...
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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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