Name: _________________________ Score: ______ / ______ Algebra I Quarter 1 Exam Answer the questions below. Make sure to show your work when applicable. Solve the absolute value equation. Check your solutions. | 5x + 13| = –7 5x + 13 = -7 5x = -20 X = -4 Simplify the expression below. 6n2 - 5n2 + 7n2 6 – 5 + 7 = 8 =8n2 The total cost for 8 bracelets‚ including shipping was $54. The shipping charge was $6. Write an equation that models the cost of each bracelet
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n Algebra‚ a term‚ or monomial‚ is comprised of a combination of one to three of the following: numbers‚ variables‚ and exponents. In Algebraic expressions and equations‚ terms are separated by addition and subtraction signs. * Numbers: Constant‚ known quantities that remain fixed. Examples: 100‚ 23‚ -157‚ π * Variables: Symbols that represent unknown quantities. Examples: θ‚ x‚ y‚ and any other letter of the alphabet * Exponents: A known or unknown quantity that raises a base to
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Algebra Algebra was invented by the Muslim mathematician Al-Khwarizmi in the book he wrote in 820. Algebra is the Arabic word (aljabr) for "equation"‚ and the word "algorithm" comes from the author’s name‚ Al-Khwarizmi. He is rightly known as "the father of Algebra The roots of algebra can be traced to the ancient Babylonians‚ who developed an advanced arithmetical system with which they were able to do calculations in analgorithmic fashion. The Babylonians developed formulas to calculate solutions
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Algebra is one of the most important subjects someone can learn. It is a subject that transfers into daily life‚ often without anyone even realizing it. Unlike English or History classes‚ Algebra can be put straight to use once learned. It is one of the most versatile subjects there is. Algebra can be anything from calculating the amount of money you’ve spent on your grocery shopping‚ keeping track of the calories you have in your diet‚ and designing structural plans for a building.
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Various derivations of the word "algebra‚" which is of Arabian origin‚ have been given by different writers. The first mention of the word is to be found in the title of a work by Mahommed ben Musa al-Khwarizmi (Hovarezmi)‚ who flourished about the beginning of the 9th century. The full title is ilm al-jebr wa’l-muqabala‚ which contains the ideas of restitution and comparison‚ or opposition and comparison‚ or resolution and equation‚ jebr being derived from the verb jabara‚ to reunite‚ and muqabala
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The Father of Algebra In the source‚ Shawn Overbay writes a biography on The Father of Algebra‚ Al-Khwarizmi. Overbay shows and explains the equations that Al-Khwarizmi invented and how they were used. In the source‚ the author states “Al-Khwarizmi wrote numerous books that played important roles in arithmetic and algebra” (Overbay). Not only was The Father of Algebra a mathematician‚ he was also an inventor‚ an Astronomer‚ and a Scholar. The visual source is a page from Al-Khwarizmi’s Kitab
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The Difficulties Math Places on Students: A Summary of “Is Algebra Necessary?” In “Is Algebra Necessary?” by Andrew Hacker‚ an emeritus professor of political science at Queens College‚ City University of New York ‚ Hacker critiques algebra‚ claiming that students are not passing‚ and that this is limiting the level of education available to them . Hacker suggests that if we make math more practical‚ by adding things such as “citizen statistics‚” more students will succeed. In the beginning of his
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HISTORY OF ALGEBRA M AT H 1 WHAT IS ALGEBRA? • Denotes various kinds of mathematical ideas and techniques • more or less directly associated with formal manipulation of abstract symbols and/or with finding the solutions of an equation. HISTORICAL OBJECTIVES 1. attempts to deal with problems devoted to finding the values of one or more unknown quantities. 2. the evolution of the notion of number 3. the gradual refinement of a symbolic language THE SEARCH OF “EQUATION” • Egyptian Mathematics
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Inequality Equation: 12x + 15y ≤ 3000 (1). 12x+ 15(0) 15y ≤ 3000 (2). 12(0) + 15y≤ 3000 12x ≤ 3000 15y≤ 3000 12x / 12 ≤ 3000/12 15y / 15 ≤ 3000/15 12x ≤ 250 15y≤200 The problem 46 on page 240 in the text book‚ Elementary and Intermediate Algebra asks that I evaluate an inequality equation that can satisfy the Ozark Company needs. (Dugopolski‚ M. 2012 )The paragraphs ask for an inequality that can allow the company to use 3000 board feet of maple lumber. Of the 3000 board feet of lumber‚ the
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Financial Polynomials Tabitha Teasley Math 221: Introduction to Algebra Regina Cochran March 22‚ 2014 There are many times in our life that we need to buy something big and expensive. In order to afford or buy these item‚ such as cars‚ trucks‚ and houses‚ we need to invest or save our money over time for that particular goal. Knowing how much money we need to begin with initially for an investment and how much money we need to save
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