A matrix captures which activities have to be before other activities can start. O dependency, completed O dependency, scheduled O network, scheduled O network, completed Which of the following is NOT an example of wasted capacity of a resource? A manager asked his unloading workers to show up very early and wait for a shipment O A chef accidentally over-fried a piece of meat which would be thrown away Idle time of a washing machine Customers wait in a long line to get their food Under the fixed-quantity inventory systems, the time between orders is O random because the manager varies the order quantity every time O constant because the manager follows a fixed interval between inventory reviews fixed because demand is random O varying because customer purchases are not constant