XIX equals 19 in numbers: X + (X - I) = 10 + (10 - 1) = 19. Roman numerals use letters I, V, X, L, C, D, and M. Higher numerals precede lower ones in Roman numerals
PowerPoint offers both built-in templates and custom templates. Click File > New > Office to access templates. Select desired template and click Create to download
Python is easy to learn, powerful programming language with efficient data structures. It offers elegant syntax and dynamic typing for scripting and rapid development. Python interpreter and standard library are freely available from python.org. Language can be extended with C/C++ functions and used for customization
Star pentagon has 5 sides with external angles of 144 degrees. Only 5 iterations with same turn angles needed for perfect star
Best results with simple backgrounds that can be easily covered. Always save as copy or duplicate layer before removing items. Eraser Tool should be used as last resort
Reported speech uses 'say' or 'tell' to convey someone else's thoughts. Present tense reporting verbs simply add 'that'. Past tense reporting verbs usually change tense in reported speech. General facts don't require tense changes unless information is true