Linear Algebra: A Modern Introduction
4th Edition
ISBN: 9781285463247
Author: David Poole
Publisher: Cengage Learning
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A professor gives two types of quizzes, objective and recall. He plans to give at least 15 quizzes this quarter. The student preparation time for an objective quiz is 15 minutes and for a recall quiz 30 minutes. The professor would like a student to spend at least 5 hours total (300 minutes) preparing for these quizzes. It takes the professor 1 minute to grade an objective quiz, and 1.5 minutes to grade a recall type quiz. How many of each type of quiz should the professor give in order to minimize his grading time (why still meeting the other requirements outlined)?
Table 15-21 shows the relative frequencies of the scores of a group of students on a philosophy quiz.Table 15-21
Score45678
Relative frequency7%11%19%24%39%
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- 3) Use the following system of linear inequalities graphed below to answer the questions. a) Use the graph to write the symbolic form of the system of linear inequalities. b) Is (-4,2) a solution to the system? Explain. 5 -7 -5 -3 -2 0 2 3 4 $ 6 -2 -6 -7arrow_forward) Graph the feasible region subject to the following constraints. x + y ≤ 6 y ≤ 2x x ≥ 0, y ≥ 0 P + xarrow_forwardSolve the following system of equations: 50x+20y=1800 10x+3y=300arrow_forward
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