4.1 - Blackboard Learning System 4/14/09 4:45 PM Your...

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Unformatted text preview: Blackboard Learning System 4/14/09 4:45 PM Your location: Assessments › View All Submissions › View Attempt View Attempt 1 of 5 Title: Started: Submitted: Time spent: Problem Set 4.1 March 1, 2009 11:00 PM March 1, 2009 11:11 PM 00:11:50 Total score adjusted by 0.0 Maximum possible score: 10 Total score: 10/10 = 100% Done 1. Provide an appropriate response. Find t to four decimal places. e -0.07t = 0.05 Student Response A. -66.4815 B. 42.7962 C. -70.1312 D. 44.321 Score: 2. Provide an appropriate response. Find t to four decimal places. e-t = 0.06 Student Response A. 2.9134 B. 2.8134 C. -2.8134 D. 2.6134 Score: 3. Provide an appropriate response. http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 1 of 4 Feedback 1/1 Feedback 1/1 Blackboard Learning System 4/14/09 4:45 PM Find x to two decimal places. x = 7,000e 0.11 Student Response A. 7831.95 B. 7975.01 C. 7813.95 D. 8320.50 Score: 4. Provide an appropriate response. What will the value of an account (to the nearest cent) be after 8 years if $100 is invested at 6.0% interest compounded continuously ? Student Response A. $161.61 B. $849.47 C. $175.32 D. $159.38 Score: 5. Provide an appropriate response. If is invested at 10 years ? compounded continuously, what is the amount in the account after 1/1 Feedback 1/1 Feedback Student Response A. B. $8442.52 C. D. Score: 6. Provide an appropriate response. http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Feedback 1/1 Page 2 of 4 Blackboard Learning System 4/14/09 4:45 PM How long will it take for $8400 to grow to $14.600 at an interest rate of 9.4% if the interest is compounded continuously ? Round the number of years to the nearest hundredth. Student Response A. 0.06 yr B. 5.88 yr C. 58.81 yr D. 0.59 yr Score: 7. Provide an appropriate response. Suppose that $8000 is invested at an interest rate of 5.5% per year, compounded continuously. How long would it take to double the investment? Student Response A. 11.6 yr B. 13.6 yr C. 2 yr D. 12.6 yr Score: 8. Provide an appropriate response. How long will it take for the value of an account to be $890 if $350 is deposited at 11% interest compounded continuously ? Round your answer to the nearest hundredth. Student Response A. 0.93 yr B. 8.48 yr C. 10.41 yr D. 9.33 yr Score: 9. Provide an appropriate response. Radioactive carbon -14 has a continuous compound rate of decay of r = -0.000124. Estimate the http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 3 of 4 Feedback 1/1 Feedback 1/1 Feedback 1/1 Blackboard Learning System 4/14/09 4:45 PM age of a skull uncovered at an archaeological site if 6% of the original amount of carbon -14 is still present. (Compute answer to the nearest year.) Student Response A. 124,027 yr B. 22,689 yr C. 470 yr D. 20,032 yr Score: 10. Provide an appropriate response. How long will it take money to double if it is invested at Round your answer to the nearest tenth. compounded continuously ? 1/1 Feedback Student Response A. 14 yr B. 13.2 yr C. 26.4 yr D. 0.13 yr Score: 1/1 Feedback Done http://online.sdccd.edu/webct/urw/lc4130001.tp0/cobaltMainFrame.dowebct Page 4 of 4 ...
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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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