exam2_2009

# exam2_2009 - Math 171 Exam II Fall 2009 Name Select your...

This preview shows pages 1–8. Sign up to view the full content.

Math 171 Exam II Fall 2009 Name: Select your discussion section 325 TR 9:55-10:45 Ashutosh Kumar 329 TR 14:25-15:15 322 TR 8:50-9:40 Andrea Medini 324 TR 9:55-10:45 323 TR 8:50-9:40 Loizos Solomou 327 TR 12:05-12:55 326 TR 11:00-11:50 Li Wang 328 TR 13:20-14:10 You may not use a calculator, notes or books. Show your work and write clearly. Make sure that your answers stand out. Read the problems carefully; be sure to answer them in the manner required. Check your answers wherever possible. Good Luck! Question Points Score 1 8 2 9 3 18 4 15 5 12 6 14 7 12 8 12 Total: 100

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Math 171: Exam 2 1. [8 points] The graph of x 2 + y 2 - 2 x + 5 y + 5 = 0 is a circle. Find its center and radius. 2. An object is moving along a straight track. Its position after t seconds is s ( t ) = t 3 - 3 t meters. (a) [3 points] How fast is it moving after 2 seconds? (b) [3 points] What is its acceleration after 2 seconds? (c) [3 points] What is the total distance the object travels in the first three seconds? ( Hint : Figure out when it changes direction.) Page 2
Math 171: Exam 2 3. Evaluate the following limits, or explain why they do not exist. (a) [6 points] lim x 2 x - 2 5 + x 2 - 3 . (b) [6 points]

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern