Years ago when working a helpdesk, the most common question asked, almost daily, was about resetting passwords. What type of knowledge resource would this be

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.

You may see the term faq on websites which stands for frequently asked questions this is an example of which type of mnemonic? a) poem b) acronym c) acrostic d) abbreviation ken has dipped many dark chocolate marshmallows (which you remember the metric system distance units in decreasing order: kilometers, hectometer, decameter, centimeter, millimeter) is an example of which type of mnemonic? a) poem b) acronym c) acrostic d) abbreviation !

6. write a user-defined matlab function for the following math function: r() = 4cos(4sin ) the input to the function is  (in radians) and the output is r. write the function such that  can be a vector. a) use the function to calculate r(/6) and r(5/6). b) use the function to plot (polar plot) r() for 0 ≤  ≤ 2. hint: use “ polar” and/or for “polar plot in matlab." include the title “'r(\theta)=4cos(4sin(\theta))”