5/10/12 9:46 PMSection 11.4Page 1 of 2http://www.webassign.net/web/Student/Assignment-Responses/view_key?dep=3769832Current Score : 14 / 14 Due : Monday, February 27 2012 11:03 PM EST1. 3/3 points | Previous AnswersFind an equation of the tangent plane to the given surface at the specified point.z = e(x2 - y2), (1, -1, 1)z = 2. 3/3 points | Previous AnswersFind an equation of the tangent plane to the given surface at the specified point.z = y ln x, (1, 2, 0)z = 3. 2/2 points | Previous AnswersFind the linear approximation of the function below at (3,2,6).f(x, y, z) Use the linear approximation to approximate the following number. Give your answer correct to 3decimal places.6.968 6.9694. 3/3 points | Previous AnswersThe dimensions of a closed rectangular box are measured as 80 cm, 60 cm, and 50 cm, respectively,with a possible error of 0.2 cm in each dimension. Use differentials to estimate the maximum error inSection 11.4 (Homework)Ali Al ZaabiMA 242, section 001, Spring 2012Instructor: J. Louis CappsWebAssignThe due date for this assignment is past. Your work can be viewed below, but no changes can be made.5/10/12 9:46 PMSection 11.4Page 2 of 2http://www.webassign.net/web/Student/Assignment-Responses/view_key?dep=3769832calculating the surface area of the box.152 152 cm25. 3/3 points | Previous AnswersUse differentials to estimate the amount of metal in a closed cylindrical can that is 10 cm high and 4 cmin diameter if the metal in the top and bottom is 0.1 cm thick and the metal in the sides is 0.05 cmthick.8.8 8.8
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