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she teaches math and science 


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A transformation in which a plane figure turns around a fixed center point. In other words, one point on the plane, the center of rotation, is fixed and everything else on the plane rotates about that point by a given angle. 


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The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers. The "median" is the "middle" value in the list of numbers 


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To find the Median, place the numbers you are given in value order and find the middle number. Example: find the Median of {13, 23, 11, 16, 15, 10, 26}. Put them in order: {10, 11, 13, 15, 16, 23, 26} The middle number is 15, so the median is 15. (If there are two middle numbers, you average them.) 


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The score which occurs most often is 18. This problem really asked us to find the mode of a set of 7 numbers. Definition: The mode of a set of data is the value in the set that occurs most often. 


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The range of a set of data is the difference between the highest and lowest values in the set. To find the range, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set. 


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Translation is a rigid motion, meaning an object changes its position but not its size or shape. In a translation, an object is moved in a given direction for a particular distance. 


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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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not consistent or having a fixed pattern; liable to change. 


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a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression 


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a round solid figure, or its surface, with every point on its surface equidistant from its center. 


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a solid geometric figure with straight parallel sides and a circular or oval cross section. 


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an object, shape, or arrangement in the form of a pyramid 


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a solid geometric figure whose two end faces are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms. 


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A cone is a threedimensional geometric shape that tapers smoothly from a flat base to a point called the apex or vertex. 

