MAT.SCIENCE+ENGIN.(PERUSALL ACCESS)
MAT.SCIENCE+ENGIN.(PERUSALL ACCESS)
10th Edition
ISBN: 2818440149658
Author: Callister
Publisher: PERUSALL
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Chapter 1, Problem 2QAP
To determine

The three items that are made from metals or their alloys. The specific metal or alloy used for each item and its characteristic.

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Create 6 users: Don, Liz, Shamir, Jose, Kate, and Sal. Create 2 groups: marketing and research. Add Shamir, Jose, and Kate to the marketing group. Add Don, Liz, and Sal to the research group. Create a shared directory for each group. Create two files to put into each directory: spreadsheetJanuary.txt meetingNotes.txt Assign access permissions to the directories:  Groups should have Read+Write access Leave owner permissions as they are  “Everyone else” should not have any access   Submit for grade: Screenshot of  /etc/passwd contents showing your new users Screenshot of /etc/group contents showing new groups with their members Screenshot of shared directories you created with files and permissions
Given the following knapsack problem: item weight value 1 2 lbs $40 2 5 lbs $65 3 6 lbs $72 4 lbs $60 Knapsack capacity W=12 Find the most valuable subset of the items that fit into the knapsack. You must show and explain your intermediate steps for the following questions. a) If it is a fractional knapsack problem, provide the optimal solution using greedy algorithm (Greedy strategy: choosing items with greatest value per pound) b) If it is a 0-1 knapsack problem, provide the optimal solution using dynamic programming (you need to provide the optimal value, the list of items that make up the optimal solution, and the V table) V[k, w] = V[k - 1,w] - if wk > w [max{ V[k − 1, w], V[k − 1, w − Wk] + vk} else
show workings and explaination
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