3.6 - Blackboard Learning System 4:44 PM Your location...

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Unformatted text preview: Blackboard Learning System 4/14/09 4:44 PM Your location: Assessments › View All Submissions › View Attempt View Attempt 1 of 5 Title: Started: Submitted: Time spent: Problem Set 3.6 February 15, 2009 7:32 PM February 15, 2009 9:35 PM 02:02:55 Total score adjusted by 0.0 Maximum possible score: 10 Total score: 9/10 = 90% Done 1. Find y for the given values of x1 and x2. y = 2x + 3; x = 18, Δx = 0.5 Student Response A. 0.5 B. 5 C. 1 D. 0.1 Score: 2. Solve the problem. V= 1/1 Feedback πr3, where r is the radius, in centimeters. By approximately how much does the volume of a sphere increase when the radius is increased from 2.0 cm to 2.2 cm ? (Use 3.14 for π.) Student Response A. 9.8 cm 3 B. 10.0 cm 3 C. 1.0 cm 3 D. 10.2 cm 3 Score: 0/1 Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 1 of 5 Blackboard Learning System 4/14/09 4:44 PM 3. Find dy. y=x Student Response A. B. C. D. dx dx dx dx 1/1 Feedback Score: 4. Find dy for the given values of x and Δx. y= +3 ; x = 4, Δx = 0.5 Student Response A. B. .45 C. D. .47 Score: 5. Find dy for the given values of x and Δx. 1/1 Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 2 of 5 Blackboard Learning System 4/14/09 4:44 PM y = 2x + 3; x = 18, Δx = 0.5 Student Response A. 5 B. 0.1 C. 1 D. 0.5 Score: 6. Use the differential to approximate the quantity to four decimal places. e0.222 Student Response A. 1.2486 B. 1.2220 C. .7780 D. 0.8009 Score: 7. Solve the problem. A grocery store estimates that the revenue (in dollars) from the sale of x cases of condensed soup is given by R(x) = -5600 + 9.7x - 0.0014x2. Use the differential to approximate the change in revenue from the sale of one more case of soup when 1400 cases are sold. Student Response A. $5.78 B. $5236.00 C. -$7.74 D. $7.74 Score: 8. Find dy for the given values of x and Δx. 1/1 Feedback 1/1 Feedback 1/1 Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 3 of 5 Blackboard Learning System 4/14/09 4:44 PM y= ; x = 10, Δx = 0.1 Student Response A. B. C. D. Score: 9. Find dy for the given values of x and Δx. y = 2x5 - 3x2 + x - 1; x = -1, Δx = 1/1 Feedback Student Response A. B. C. D. Score: 10. Find dy for the given values of x and Δx. y = x3 + 2x; x = 2, Δx = 0.01 1/1 Feedback http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 4 of 5 Blackboard Learning System 4/14/09 4:44 PM Student Response A. 0.007 B. 0.14 C. 0.07 D. 0.014 Score: 1/1 Feedback 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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