The Law of Conservation of Mass Goals: 1. To identify the parts of a chemical equation. Students need to identify subscripts‚ coefficients‚ reactants‚ products‚ chemical formulas‚ and chemical symbols 2. To appreciate that scientific discoveries are often the result of inquiry. 3. to distinguish between an element‚ a compound‚ and a mixture (and between heterogeneous and homogeneous mixtures) 4. To balance a chemical equation in order to prove that the Law of Conservation of Mass works quantitatively as well as conceptually
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Name: ________________________ Date:__________________ Year & Section: _________________ Teacher: _______________ Reviewer: Quadratic Equations I. Multiple Choice: Choose the letter of the correct answer. Show your solution. 1. What are the values of x that satisfy the equation 3 – 27x2 = 0? A. x = [pic]3 B. x = [pic] C. x = [pic] D. x = [pic] 2. What are the solutions of the equation 6x2 + 9x – 15 = 0? A. 1‚ - 15 B. 1‚ [pic] C. – 1‚ - 5 D. 3‚ [pic]
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Breaking distances: Introduction: Drivers must pay attention to their surroundings. This includes calculating the braking distance from the cars and objects around a driver. With this the driver can avoid accidents and can save lives and money. As shown in the picture above. The prime factors that apply that have a big impact on the actual stopping distances in the real world: Weather‚ road conditions‚ type and condition of vehicle‚ load etc ‚ not to mention the age‚ health and mental ability
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This article is about quadratic equations and solutions. For more general information about quadratic functions‚ see Quadratic function. For more information about quadratic polynomials‚ see Quadratic polynomial. A quartic equation is a fourth-order polynomial equation of the form. A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable. Monomial – is a polynomial with only one term. Binomial
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1. The set of all integers x such that |x – 3| < 2 is equal to (a) {1‚ 2‚ 3‚ 4‚ 5} (b) {1‚ 2‚ 3‚ 4} (c) {2‚ 3‚ 4} (d) {-4‚ -3‚ -2} 2. The Range of the function f(x) = x 2 2 x − − is (a) R (b) R – {1} (c) (-1) (d) R – {-1} 3. The value of (i)i is (a) ω (b) ω2 (c) e-π/2 (d) 2√2 4. ( ) ( ) 4 5 cos isin icos sin θ + θ θ + θ is equal to (a) cos− isin θ (b) cos9θ − isin9θ (c) sin θ − icosθ (d) sin 9θ − icos9θ 5. The roots of the quadratic equation ax2 + bx + c = 0 will be reciprocal
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Intermediate University Mathematics II (MAT 101) Autumn 2013‚ Section Instructor: Md. Shoaib Shahriar‚ Lecturer‚ SECS‚ IUB Contact number: 01715-135332 Email: shoebeee05@gmail.com Room no: 5010 B Class Hour: Tutorial Class: Group address: Student on Duty (SOD): Grade Distribution: Letter Grades Marks A 85 and above A- 80-84 B+ 75-79 B 70-74 B- 65-69 C+ 60-64 C 55-59 C- 50-54 D+ 45-49 D 40-44 F Below 40 Assessment Procedure: Class attendance 10% Quiz/ class tests 30% Midterm exam
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FIRST PERIODICAL TEST IN MATH-9 Name: _____________________________ Date: _______ Year and Section: ____________________ Score: ______ MULTIPLE CHOICE : Write the letter of the correct answer on the space provided before each item. KNOWLEDGE ______ Which of the following value of k would make the polynomial a perfect square trinomial? A. 7 B. 8 C. 40 D. 49 ______What number must be added to in order to make it a perfect square trinomial? A. B. C. D. _____Which of
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March 5 The budget for the Grant Center assumes a linear relationship between the number of student visitors and the daily operating cost of the center. Some sample (number of students‚ operating cost) values are given in the table below. Number of Students 0 10 20 40 Daily Operating Cost $450 $600 $750 $1‚050 a. Use the given data to write an equation showing how operating cost‚ C‚ depends on the number of students‚ x. Explain or show how you found the equation. For parts (b)–(d)‚ write
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Student Name/Number:___________________ Teacher Name:__________________________ 2011 MID COURSE EXAMINATION Preliminary - YEAR 11 Mathematics Time allowed – Two hours (Plus 5 minutes reading time) DIRECTIONS TO CANDIDATES Attempt ALL questions. ALL questions are of equal value. All necessary working should be shown in every question. Marks may be deducted for careless or badly arranged work. Board-approved calculators may be
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Jasmine Chai Grade 10 196298501 Patterns within systems of linear equations Systems of linear equations are a collection of linear equations that are related by having one solution‚ no solution or many solutions. A solution is the point of intersection between the two or more lines that are described by the linear equation. Consider the following equations: x + 2y = 3 and 2x – y = -4. These equations are an example of a 2x2 system due to the two unknown variables (x and y) it has. In one of
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