1.1 Investigate using web-search engine, where linear programming have been applied towards effective planning, scheduling and costing of a project. Note: you are expected to download article(s) using the google search engine and not Wikipedia document(s), carefully read them and thereafter summarize in your own words some specific sections of these articles to answer the questions below. Your investigation should clearly indicate the following: 5 1.1.1 When linear programming model was adopted for effective management of a project. (4) 1.1.2 The problem(s) within a project that prompted the need for the application of linear programming model. (4) 1.1.3 Brief description of the objective function and the constraints considered during the formulation of the linear programming model, with a view to solve the problem(s) identified in a project. (9) 1.1.4 Brief description of the computational procedure used to solve the linear programming model formulated in this study. (9) 1.1.5 The summary and importance of the linear programming solution results obtained to solve the problem(s) identified within a project