- Determine the weakest precondition for the following sequence of expressions. Please provide all your work including calculations, logic implications if any applies, and final answer.{ ? } a = 4 * (3 * b - a); b = 4 * a - 6; { b > 10 }

Your computer running windows 10 is doing some very strange things with the operating system. you are fairly certain it is not a hardware issue. you need to try to get further insight into what is going on within the operating system. which tool would be best suited for this?

1. you have a small business that is divided into 3 departments: accounting, sales, and administration. these departments have the following number of devices (computers, printers, etc.): accounting-31, sales-28, and administration-13. using a class c private network, subnet the network so that each department will have their own subnet. you must show/explain how you arrived at your conclusion and also show the following: all available device addresses for each department, the broadcast address for each department, and the network address for each department. also, determine how many "wasted" (not usable) addresses resulted from your subnetting (enumerate them).

According to the video what are some tasks petroleum engineers perform check all that apply