Whether presenting in a boardroom, off an iPad, over the Web or as a print-out, the right delivery is the difference between a great presentation and, at best, a missed opportunity and, at worst, a presentation disaster. All the other elements donât matter if the delivery doesnât work.
Parentheses have a great many specialized meanings in mathematics. A few of these are described below. 1. Parentheses are used in mathematical expressions to denote modifications to normal order of operations (precedence rules).
What does it mean when a compound contains parentheses? It means that there is a certain group of atoms in it, usually an ion, that there is more than one of. For example, in Ca(NO3)2 , calcium nitrate, there are two nitrate, or â¦NO3-, ions in each formula unit.