At what point in the systems development life cycle does the company determine how the conceptual ais design is to be implemented

Write lines of verse that rhyme to remember the following information: acid rain is a type of air pollution caused by chemicals in the air.

How would you categorize the software that runs on mobile devices? break down these apps into at least three basic categories and give an example of each.

An environmental protection agency study of 12 automobiles revealed a correlation of 0.47 between engine size and emissions. at 0.01 significance level, can we conclude that there is a positive association between the variables? what is the p value? interpret.