The author defines all terms, points out potential pitfalls in algebraic calculation, and makes problem solving a fun activity. New in this edition are painless approaches to understanding and graphing linear equations, solving systems of linear inequalities, and graphing quadratic equations. Barron’s popular Painless Series of study guides for middle school and high school students offer a lighthearted, often humorous approach to their subjects, transforming details that might once have seemed boring or difficult into a series of interesting and mentally challenging ideas. Most titles in the series feature many fun-to-solve “Brain Tickler” problems with answers at the end of each chapter.

    In the four main sections of the book, Stein tells the stories of the mathematical thinkers who discerned some of the most fundamental aspects of our universe. From their successes and failures, delusions, and even duels, the trajectories of their innovations—and their impact on society—are traced in this fascinating narrative. Quantum mechanics, space-time, chaos theory and the workings of complex systems, and the impossibility of a "perfect" democracy are all here. Stein's book is both mind-bending and practical, as he explains the best way for a salesman to plan a trip, examines why any thought you could have is imbedded in the number π , and—perhaps most importantly—answers one of the modern world's toughest questions: why the garage can never get your car repaired on time.Friendly, entertaining, and fun, How Math Explains the World is the first book by one of California's most popular math teachers, a veteran of both "math for poets" and Princeton's Institute for Advanced Studies. And it's perfect for any reader wanting to know how math makes both science and the world tick.

    This book picks you up at the very beginning and guides you through the foundations of algebra using lots of examples and no-nonsense explanations. Each chapter contains well-chosen exercises as well as all the solutions. No prior knowledge is required. Topics include: Exponents, Brackets, Linear Equations and Quadratic Equations. For a more detailed table of contents, use the "Look Inside" feature. From the author of "Great Formulas Explained" and "Physics! In Quantities and Examples".

    How does professional baseball evaluate hitters? Is a singles hitter like Wade Boggs more valuable than a power hitter like David Ortiz? Should NFL teams pass or run more often on first downs? Could professional basketball have used statistics to expose the crooked referee Tim Donaghy? Does money buy performance in professional sports?In Mathletics, Wayne Winston describes the mathematical methods that top coaches and managers use to evaluate players and improve team performance, and gives math enthusiasts the practical tools they need to enhance their understanding and enjoyment of their favorite sports--and maybe even gain the outside edge to winning bets. Mathletics blends fun math problems with sports stories of actual games, teams, and players, along with personal anecdotes from Winston's work as a sports consultant. Winston uses easy-to-read tables and illustrations to illuminate the techniques and ideas he presents, and all the necessary math concepts--such as arithmetic, basic statistics and probability, and Monte Carlo simulations--are fully explained in the examples.After reading Mathletics, you will understand why baseball teams should almost never bunt, why football overtime systems are unfair, why points, rebounds, and assists aren't enough to determine who's the NBA's best player--and much, much more.

    The Golden Section—otherwise known as phi, the golden mean, or the golden ratio—is one of the most elegant and beautiful rations in the universe.Defined as a line segment divided into two unequal parts, such that the ratio of the shorter portion to the longer portion is the same as the ratio of the longer portion to the whole, it pops up throughout nature—in water, DNA, the proportions of fish and butterflies, and the number of teeth we possess—as well as in art and architecture, music, philosophy, science, and mathematics.Beautifully illustrated, The Golden Section tells the story of this remarkable construct and its wide-ranging impact on civilization and the natural world.

    These collected interviews, like a visit with Percy at his home on the Bogue Falaya River, provide refreshing close-up encounters with one of America's most celebrated writers.These twenty-seven interviews cover a period of twenty-two years, from the time of the publication of Percy's first novel, The Moviegoer, in 1961, until 1983, when he was interviewed about his friendship with Thomas Merton.These unabridged interviews, collected from a variety of sources, will give reading pleasure to general readers who wish to know Percy and his works more closely, and they will be of great use to Percy scholars.

    Written by the well-known mathematics teacher consultant, this volume's collection of over 200 clearly illustrated mathematical ideas, concepts, puzzles, and games shows where they turn up in the real world. You'll find out what a googol is, visit hotel infinity, read a thorny logic problem that was stumping them back in the 8th century.THE JOY OF MATHEMATICS is designed to be opened at random...it's mini essays are self-contained providing the reader with an enjoyable way to explore and experience mathematics at its best.

    

    The MOST IMPORTANT, INFORMATIVE AND EXPLOSIVE BOOK EVER WRITTEN ABOUT THE ANUNNAKI, THEIR WORLD, THEIR RETURN TO EARTH, AND PLAN FOR HUMANITY in:• 2,034 A.D. • 2,031-2,033 A.D. • 2,029 A.D. • 2,028 A.D. • 2,027-2,026 A.D. • 2,026 A.D. • 2,025 A.D. • 2,024 A.D. • 2,022-2023 A.D. • The author, Maximillien de Lafayette, have been so fortunate as to study with the Anunnaki Ulema who are the guardians of this knowledge in Egypt, Iraq, the islands of Arwad and Cyprus. This is the first time he is making use of this depot of knowledge about the Return of the Anunnaki to Planet Earth, and we are very lucky to have access to it. The subjects introduced in this book are explosive. Most important is the fact that it reveals the potential return of the Anunnaki in 2022, and the most frightening transformation that it would bring to the earth. If this is going to happen, a huge number of the people on earth, those grossly contaminated by Grays’ DNA, will be annihilated. You know who they are – the child murderers, the rapists, those who torture, those who abuse, the vicious politicians, the slaves of money and power, etc. Yes, we all know who they are. But the Anunnaki, who have no false sentimentality at all, will not tolerate even a medium level contamination. Unless they do their best to clean themselves during the grace period of the next 9 years, those of mid level contamination will also be destroyed. Those who would manage to clean themselves to a certain degree may possibly (but without any guarantee) be able to escape the burning, smoking earth through special portals, called Ba’abs. For those of us interested in the use of esoteric codes, they are here for you to learn. Each term will teach you how to use it for your benefit, how to apply it not only to your spiritual growth, but to your business, relationships, and daily life. You will learn how to interpret the codes in many ancient languages, how to build a physical amulet/code that will protect certain aspects of your life, and how to develop your psychic and extrasensory powers by simply using these codes. You will learn how the Anunnaki, our original creators, and how God fit into all this. Religion, true and false, will be explored. Jesus, who never really died on the Cross, will be shown as a historical figure, with his wife, Mary Magdalene, with whom he escaped to ancient Marseille. Who were Adam and Eve? Who was the Serpent? How do the gods of Sumer signify to us? The book is arranged in the time-honoured tradition of questions and answers.The return of the Anunnaki is not a new idea. It has been already announced in sacred scriptures, but of course interpreted differently. Some said Jesus is an Anunnaki, and he will return as a cosmic Messiah. A new school of religious thought in Iran suggests that Mohammed will return as a celestial being. And we should not to forget the Rapture and the Gnostics as well. But all of them have their origin in the Anunnaki texts, because these texts were written thousands of years before the Old Testament, the New Testament, and the Quran. The book will explore this topic and includes:• What Is Going To Happen To Organized Religions?• How Will The Human Mind Benefit From The Anunnaki Connection?.• What Will Happen To The Teachings Of Jesus, Moses, Mohammed, And Buddha, If The Anunnaki Demolish All Religions And Our Religious Beliefs Systems?• What Will Happen To The Vast Number

    Maisel, Monk) calmly tells the tale of how the ancient Greeks formalized the study of mathematics based on Phoenician teachings. Bedtime stories are narrated by the world’s most celebrated voices and written with no beginning, middle, or end so you don’t stay up to hear what happens next. They're interesting enough to give your mind something to focus on, but delivered in a way that encourages sleep. This title is part of the Audible Sleep Collection, exclusive audio experiences created to invite relaxation and sleep. New and free for members.Public Domain (P)2020 Audible

    "Using Econometrics: A Practical Guide "provides readers with a practical introduction that combines single-equation linear regression analysis with real-world examples and exercises. This text also avoids complex matrix algebra and calculus, making it an ideal text for beginners. New problem sets and added support make "Using Econometrics" modern and easier to use.

    Short-Cut Math is a concise, remarkably clear compendium of about 150 math short-cuts — timesaving tricks that provide faster, easier ways to add, subtract, multiply, and divide.By using the simple foolproof methods in this volume, you can double or triple your calculation speed — even if you always hated math in school. Here's a sampling of the amazingly effective techniques you will learn in minutes: Adding by 10 Groups; No-Carry Addition; Subtraction Without Borrowing; Multiplying by Aliquot Parts; Test for Divisibility by Odd and Even Numbers; Simplifying Dividends and Divisors; Fastest Way to Add or Subtract Any Pair of Fractions; Multiplying and Dividing with Mixed Numbers, and more.The short-cuts in this book require no special math ability. If you can do ordinary arithmetic, you will have no trouble with these methods. There are no complicated formulas or unfamiliar jargon — no long drills or exercises. For each problem, the author provides an explanation of the method and a step-by-step solution. Then the short-cut is applied, with a proof and an explanation of why it works.Students, teachers, businesspeople, accountants, bank tellers, check-out clerks — anyone who uses numbers and wishes to increase his or her speed and arithmetical agility, can benefit from the clear, easy-to-follow techniques given here.

    This book leads the reader from simple graphs through planar graphs, Euler's formula, Platonic graphs, coloring, the genus of a graph, Euler walks, Hamilton walks, more. Includes exercises. 1976 edition.

    presents some of the most famous mathematical proofs in a charming book that will appeal to nonmathematicians and math experts alike. Grasp in an instant why Pythagoras's theorem must be correct. Follow the ancient Chinese proof of the volume formula for the frustrating frustum, and Archimedes' method for finding the volume of a sphere. Discover the secrets of pi and why, contrary to popular belief, squaring the circle really is possible. Study the subtle art of mathematical domino tumbling, and find out how slicing cones helped save a city and put a man on the moon.

    In this simple pattern beginning with two ones, each succeeding number is the sum of the two numbers immediately preceding it (1, 1, 2, 3, 5, 8, 13, 21, ad infinitum). Far from being just a curiosity, this sequence recurs in structures found throughout nature - from the arrangement of whorls on a pinecone to the branches of certain plant stems. All of which is astounding evidence for the deep mathematical basis of the natural world. With admirable clarity, two veteran math educators take us on a fascinating tour of the many ramifications of the Fibonacci numbers. They begin with a brief history of a distinguished Italian discoverer, who, among other accomplishments, was responsible for popularizing the use of Arabic numerals in the West. Turning to botany, the authors demonstrate, through illustrative diagrams, the unbelievable connections between Fibonacci numbers and natural forms (pineapples, sunflowers, and daisies are just a few examples). In art, architecture, the stock market, and other areas of society and culture, they point out numerous examples of the Fibonacci sequence as well as its derivative, the "golden ratio." And of course in mathematics, as the authors amply demonstrate, there are almost boundless applications in probability, number theory, geometry, algebra, and Pascal's triangle, to name a few.Accessible and appealing to even the most math-phobic individual, this fun and enlightening book allows the reader to appreciate the elegance of mathematics and its amazing applications in both natural and cultural settings.