Supposing you have a set of N number of questions to choose from for creating a test. Your test must have a minimum of 1 question but can have all N. How many unique tests could you create? Am I correct to assume the formula is 64! (factorial)? 64 x 63 x 62 x 61...
This will be easy for someone, but math is my second language so I'm at a loss. How do I solve for the percentage of a TOTAL budget, when one line item is unknown (and is part of the total budget)? [more inside]
Mathfail: I'm considering supplementing my cat's food with plain meat. I'd like a rough idea of how much it would bump percentage of calories from protein and fat. [more inside]
I'm taking a numerical methods class and there are all these discretization schemes of partial differential equations named after pairs of dudes and they all are kinda the same, maybe a bit different in indexes.... I'm trying to organize it all in my head, like a frat house, with the dudes that worked on the same scheme being roommates, but it seems to be taking a long time to actually "find" a place for each scheme in their "rooms" and keeping it there in a sort of visual arrangement. Test is no books no notes, and everything kinda of just jumbles inside my head right now.
Is there a formula for determining (eg.) how many tracks would fit on a TT 79:57 CDR where the first track was one second, and subsequent tracks added 1 second each? (00:01, 00:02, 00:03, 00:04, &c) [more inside]
WordPressFilter: I'm looking for a plugin/widget/codesnippet that will allow me to create a graph using input from the user. [more inside]
What does a bivariate cubic polynomial look like? [more inside]
Math and science geeks, does this fake equation make sense? 'delta' = c ... meaning "change is constant". [more inside]
I need help untangling a formula for tracking poker winnings. All this math is making my head hurt! Totally legal details within. [more inside]
How do you find a number that minus a percentage of itself is a certain number? [more inside]
I have to create an excel sheet to keep track of a book budget - in the most basic terms, I will have a total budget figure, and I want to subtract invoice figures to keep a running total. Here's an example of what I want the sheet to look like: http://i109.photobucket.com/albums/n46/coollibrarian/excel.jpg The simpler the better. [more inside]
Looking for math formulas involving food. [more inside]
Where can I find mathematical fomulas for calculating coordinating colors for interior decorating projects? [more inside]