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Cheat Sheet / Updated 07-09-2024
DJing is exciting, creative and fulfilling. DJs are on a mission to entertain and play great music. This Cheat Sheet gives you tips and information to help you DJ to the very best of your abilities.
View Cheat SheetCheat Sheet / Updated 07-03-2024
Stargazing is a fascinating hobby, but there’s an awful lot to gaze at up there. Eighty-eight constellations and hundreds of other objects both bright and faint mean that wherever you look when you’re stargazing, there’s something to see. If you want to make sense of it all, and make sure that your kit is properly set up, this Cheat Sheet is here to help.
View Cheat SheetCheat Sheet / Updated 06-17-2024
Have you ever felt you needed to hone your critical thinking skills, to enable you to master the logic of arguments and improve your critical skills as you read, write, speak, or listen? This Cheat Sheet is here to help.
View Cheat SheetCheat Sheet / Updated 06-17-2024
The American College Testing exam (ACT) tests your knowledge of grammar, reading, science, and math. In addition, the ACT includes an optional writing test. Many colleges require or recommend and entrance exam, such as the ACT, as a component of your application for admission.
View Cheat SheetCheat Sheet / Updated 06-17-2024
You’re approaching the end of your Scholastic Aptitude Test (SAT) prep journey — nicely done! It isn’t easy, but it doesn’t have to be easy for you to handle it and do great. Here are a few tips to help you do well on exam day.
View Cheat SheetCheat Sheet / Updated 06-10-2024
A score on the Law School Admission Test (LSAT for short) is a requirement for admission to almost all U.S. law schools. Make sure your score represents your best abilities by following these tips for success on all LSAT question types: analytical reasoning (or logic games), reading comprehension, logical reasoning, and the writing sample. Each set of tips highlights the important steps and strategies you need to remember for exam day.
View Cheat SheetCheat Sheet / Updated 06-10-2024
The Securities Industry Essentials (SIE) exam tests your basic knowledge of the securities industry. This exam is a corequisite exam for people who want to become an investment company representative, a general securities representative, a direct participation programs (DPP) representative, a securities trader, an investment banking representative, a private securities offerings representative, a research analyst, or an operations professional.
View Cheat SheetArticle / Updated 05-30-2024
A matrix is a rectangular array of numbers. Each row has the same number of elements, and each column has the same number of elements. Matrices can be classified as: square, identity, zero, column, and so on. Where did matrices come from? For most of their history, they were called arrays. There are references to arrays in Chinese, French, Italian, and many other mathematical works going back many hundreds of years. American mathematician George Dantzig's work with matrices during World War II allowed for the coordination of shipments of supplies and troops to various locations. Matrices are here to stay. You may be familiar with a method used to solve systems of linear equations using matrices, but this application just scratches the surface of what matrices can do. First, just in case you're not familiar with solving equations using matrices, let me give just a quick description. If you want to solve the following system of equations: You write the matrix: And then you perform row operations until you get the matrix: From that matrix, you know that the solution of the system of equations is x = 1, y = -3, and z = -5. Pretty slick, don't you think? But uses for matrices don't stop there. You can solve traffic control problems, transportation logistics problems (how much of each item to send to various distribution centers), dietary problems (how much of each food product is needed to meet several different dietary requirements), and so on. Matrices work well in graphing calculators and computer spreadsheets — just set up the problem and let the technology do all the work.
View ArticleArticle / Updated 05-30-2024
Knowing some common French greetings and good-byes will be indispensable when traveling in French-speaking countries. Saying hello and good-bye in French will quickly become second nature because you'll use them day in and day out with everyone you come across. In most French-speaking countries it's considered good manners to greet everyone. So, whether you're speaking to a clerk, a waiter, or just bumping into someone on the street, take the time to say a polite bonjour before you proceed. This also means that when step on the bus or train you should say a quick bonjour to anyone within hearing distance. The most common conversational ways to greet someone in French are: Salut. (Hello; Hi. [Informal]) Bonjour. (Hello; Good morning.) Bonsoir. (Good evening.) You might think that you can use good afternoon (bon après-midi) as a greeting the way you can in the United States, but in most French-speaking countries, bon après-midi should only be used to as a form of goodbye. Greeting with a cheek kiss Cheek kissing is another common type of greeting in most French-speaking countries. However, the rules for cheek kisses can be complicated matter. The rules change depending on the country you're in and even the region of the country. For example, in Belgium, it's customary to greet everyone in your generation or younger with one kiss, but anyone that's a generation or more older than you should be given three kiss (right cheek-left-then right again). In Paris, most people stick to a four-kiss rule, but in most of the rest of France, two kisses is the norm. If you think that's confusing, you're right. The good news is that when you meet someone for the first time, you can usually just shake hands. Then just watch how other people interact. Because it's such a common practice, you should quickly be able to determine what the standard is where you're staying. How are you? How's it going? Asking how someone is doing is a common greeting in the U.S. How many times a day do we hear or say these brief greetings at the beginning of our conversations? So many times, in fact, that half the time, we don't even pay attention. These pleasantries are common in French-speaking countries as well. The most common ways to ask how someone is doing are: Comment ça va? (How’s it going?) Comment vas-tu? (How are you? [Informal]) Comment allez-vous? (How are you? [Formal]) Ça va? (How’s it going? [Informal]) As you'd expect, when someone asks you how you're doing, there are many possible responses. Ça va bien. It’s going well.) Tout va bien. (Everything is going well.) Je vais bien, merci. (I’m fine, thank you.) Je vais très bien. (I’m very well.) Je ne vais pas très bien. (I’m not doing very well.) Je vais comme-ci, comme-ça. (I’m so-so.) Once you've said that you're fine, or good, or so-so, it is customary to ask how the other person is doing. You can do this easily by saying Et toi? (And you? [informal]) or Et vous? (And you? [formal]). Saying good-bye As many ways as there are to greet someone, you'll find plenty of ways say goodbye, as well. Au revoir. (Good-bye.) Salut. (Good-bye. [Informal]) À bientôt. (See you soon.) À tout de suite. (See you in a minute.) À plus tard. (See you later.) À la prochaine. (Until next time.) À demain. (See you tomorrow.) À la semaine prochaine. (See you next week.) À lundi. (See you on Monday.) Bonne journée! (Have a good day!) Bonne chance! (Good luck!) Bonne nuit. (Good night. Used only when someone is going to sleep or retiring for the evening.) Aside from a few exceptions, final consonants aren’t pronounced in French. Pronounce a final consonant only if it’s followed by a vowel.
View ArticleArticle / Updated 05-30-2024
The French indefinite article is the equivalent to a/an and some (but English often skips it). Do you ask about one thing, describe a couple of things that happened, and make plans for an outing that hasn’t yet been defined? If so, you’re an indefinite article kind of person, like the French! And as such, you should treat the article indéfini as the default article in French grammar. French Indefinite Articles French Article Usage in French English Equivalent Example un Before masculine singular nouns a/an un chat (a cat) une Before feminine singular nouns a/an une maison (a house) des Before masculine or feminine plural nouns some des enfants (some children) de, or d’ before nouns beginning with a vowel or a mute -h Instead of any indefinite article, after a negative verb no or not any pas d’ordinateur (no computer) Use the indefinite article when you talk about one or several individual things that you can count, as opposed to an entire category of things. Il y a un livre sur la table. (There is a book on the table.) Tu as mangé une banane. (You ate a/one banana.) Il a vu des lions au zoo. (He saw (some) lions at the zoo.) You also can use the indefinite articles un and une before an expression of quantity, like une tranche de (a slice of), un morceau de (a piece of), and un peu de (a little bit of). In a sentence with a negative verb, un, une, and des are replaced by de, even if the noun it introduces is plural. Here are some examples. Il n’y a pas de souris dans notre garage. (There is not a mouse in our garage.) Elle ne veut pas d’enfants. (She doesn’t want any children.) This rule has one exception. Don’t use de when the negative verb is être (to be). Just use the indefinite article as if the sentence was affirmative. Here are some examples: Cet animal n’est pas un chien. C’est un renard. (This animal is not a dog. It’s a fox.) — C’est une voiture rouge, n’est-ce pas? — Non ce n’est pas une voiture rouge! C’est une voiture noire. (— It’s a red car, right? — No, it’s not a red car! It’s a black car.) Choose between the definite article (le, la, l’, les) and the indefinite article (un, une, des, and de) to complete the sentences. Check a French-English dictionary if you need help with the vocabulary.
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