Math141Mid4F11

Math141Mid4F11 - Math 141 Name MIDTERM 4 – PART...

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Unformatted text preview: Math 141 Name: ________________________ MIDTERM 4 – PART 1 (CHAPTERS 5 AND 6) MATH 141 – FALL 2011 – KUNIYUKI 150 POINTS TOTAL: 44 FOR PART 1, AND 106 FOR PART 2 Show all work, simplify as appropriate, and use “good form and procedure” (as in class). Box in your final answers! No notes or books allowed. • Write units in your final answers where appropriate. • Try to avoid rounding intermediate results; if you do round off, do it to at least five significant digits. • We assume that all vectors on this test are in the usual xy-plane. PART 1: SCIENTIFIC CALCULATORS ALLOWED! (44 POINTS TOTAL) 1) Find the length of Side b for the triangle below using the Law of Sines. Round off your answer to the nearest tenth (i.e., to one decimal place) of an inch. (8 points) 2) Two boats leave the dock at Point B and travel along straight lines. The angle between their paths is 81 ¡ . At noon, one boat is 40 feet away from Point B , and the other boat is 30 feet away from Point B . What is the distance between the two boats at noon? Round off your answer to the nearest tenth of a foot....
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Math141Mid4F11 - Math 141 Name MIDTERM 4 – PART...

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