A network of irrigation ditches is shown in Figure 2.20,with flows measured in thousands of liters per day. (a) Set up and solve a system of linear equations to findthe possible flows f1, . . . , f5.(b) Suppose DC is closed.What range of flow will needto be maintained through DB?(c) FromFigure 2.20 it is clear thatDBcannot be closed.(Why not?)Howdoes your solution in part (a) showthis?(d) From your solution in part (a), determine the minimumand maximum flows through DB

th Math 340 Lecture – Introduction to Ordinary Differential Equations – April 25 , 2016 What We Covered: 1. Prepare for Quiz (second to last one guys!) a. This will cover 4.5 and 5.1 2. Course Content – Chapter 5: The Laplace Transform (LT) a. Section 5.1: The Definition of the Laplace Transform i. The whole point of LT is to find the solution to inhomogeneous equations ii. Supposed f(t) is a function of t defined for 0 < < ∞. The Laplace transform of f is the function: ∞ ℒ = = ∫ () − > 0 0 iii. When < , the exponent is positive and so the term involving −(−)approaches infinity. Thus, the Laplace transform of = is −(−) undefined for ≤ . When > , the term involving converges to zero and therefore: 1 ℒ )( = =) −