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exam2 - Name TA Math 10A Midterm Exam 2 Sec No PID Sec Time...

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Name: PID: TA: Sec. No: Sec. Time: Math 10A. Midterm Exam 2 November 13, 2006 Turn off and put away your cell phone. You may use any type of calculator, but no other electronic devices during this exam. You may use one page of notes, but no books or other assistance during this exam. Read each question carefully, and answer each question completely. Show all of your work; no credit will be given for unsupported answers. Write your solutions clearly and legibly; no credit will be given for illegible solutions. If any question is not clear, ask for clarification. 1. (4 points) Let f ( x ) = 1 x 2 + 12 . (a) Compute f ′′ ( x ). (b) On what interval(s) is the graph of f concave down? # Points Score 1 4 2 6 3 6 4 4 Σ 20
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2. (6 points) The temperature, T , in degrees Fahrenheit, of a cold yam placed in a hot oven is given by T
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