Math121SampleFinal

# Math121SampleFinal - Math 121 Name FINAL(SAMPLE QUESTIONS...

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Math 121 Name: ________________________ FINAL (SAMPLE QUESTIONS) Show all work, simplify as appropriate, and use “good form and procedure” (as in class). Box in your final answers; write units where appropriate! No notes or books allowed. USE A SCIENTIFIC CALCULATOR! 1) Approximate the area under the graph of fx x () = ln from a = 4 to b = 10 by finding a Left Riemann Sum using 3 rectangles of the same width. Round off to four decimal places whenever you need to round off. (10 points) 2) Find the integrals. Simplify wherever possible. (32 points total) a) 33 12 1 5 xx d x - - Ú (6 points)

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b) xx d x 2 6 4 - () Ú (6 points) c) ex d x 3 2 61 2 +- + Ú (6 points) d) ln x x dx Ú (6 points)
e) x x dx 2 3 1 2 4 + Ú (8 points) 3) The weight of a blob increases at the rate of 03 02 . . e t pounds per day, where t is measured in days. Find the total increase in the blob's weight from t = 3 to t = 6 . (6 points)

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4) Find the average value of

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## This note was uploaded on 09/08/2011 for the course MATH 121 taught by Professor Staff during the Spring '11 term at Mesa CC.

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Math121SampleFinal - Math 121 Name FINAL(SAMPLE QUESTIONS...

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