The Luntz report - The Israel Projects 2009 Global Language Dictionary
Mathematics Dictionary 2009
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Transcript of Mathematics Dictionary 2009
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Two rays sharing a common endpoint. Angles are typically measured in degrees or radians.
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A line segment on the interior of a circle. A chord has both
endpoints on the circle.
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A complete circular arc. Circumference also means the distance around the outside of a circle.
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(x + 2)(x + 5) = x(x + 5) + 2(x + 5) = x · x + x·5 + 2·x + 2·5 = x2 + 7x + 10
To multiply out the parts of an expression. Distributing is the opposite of factoring.
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A transformation in which a geometric figure is reflected across a line, creating a mirror image. That line is called the axis of reflection.
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A polygon with six sides.
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Perfectly flat and level. For example, the horizon is horizontal. So is the floor and so is this bar.
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The side of a right triangle opposite the right angle. Note: The hypotenuse is the longest side of a right triangle.
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All positive and negative whole numbers (including zero). That is, the set {... , –3, –2, –1, 0, 1, 2, 3, ...}.
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The number that occurs the most often in a list.
5 is the mode of 2, 3, 3, 4, 5, 5, 5
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The following are all
monomials: 5x3, 8,
and 4xy.
A polynomial with one term.
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A line representing the set of all real numbers. The number line is typically marked showing integer values.
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For , the Numerator is 12.
The top part of a fraction.
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πThe ratio of the circumference of a circle to its diameter. Pi is written π and is a transcendental number.
3.14159 26535 89793...
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An equation relating the lengths of the sides of a right triangle. The sum of the squares of the legs of a right triangle is equal to the square of the hypotenuse.
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The likelihood of the occurrence of an event. The probability of event A is written P(A). Probabilities are always numbers between 0 and 1, inclusive.
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A polygon with four sides.
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A quadrilateral which has a pair of opposite sides which are parallel. The parallel sides are called the bases, and the other two sides are called the legs.
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