Let Aequals [Start 2 By 2 Matrix 1st Row 1st Column 1 2nd Column 4 2nd Row 1st Column negative 3 2nd Column negative 12 EndMatrix ]and bequals [Start 2 By 1 Matrix 1st Row 1st Column b 1 2nd Row 1st Column b 2 EndMatrix ]. Show that the equation Axequals b does not have a solution for some choices of b​, and describe the set of all b for which Axequals b does have a solution.

6. tim is trying to study but hours go by and he doesn't get anything done. what time management advice would tim? work in smaller chunks of time an hour or less whenever you have a few minutes to spare. create flashcards. talk to your instructor right away and make a plan together for how you can get back on track, take scheduled breaks only or allow yourself only 5-10 minute breaks find somewhere quiet like a library or school to study tum off your phone and/or tell others you are busy