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20 Cards in this Set
- Front
- Back
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bar graph
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a type of graph in which the lengths of bars are used to represent and compare data in categories
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data
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information, facts, or numbers that describe something
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frequency table
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a table used to organize a large set of data into intervals
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histogram
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a graph of a frequency distribution in which rectangles with bases on the horizontal axis are given widths equal to the class intervals and heights equal to the corresponding frequencies
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numerical expression
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consists of numbers and operations
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evaluate
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to find a numerical expression's value
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order of operations
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rules used to figure out the order in which to use a numerical expression's operations
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verbal model
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symbols and words used to solve a problem
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variable
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a symbol, usually a letter, that represents one or more numbers
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variable expression
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consists of numbers, variables, and operations
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power
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a product with a repeated factor
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exponent
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tells how many times a base is used as a factor
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base
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a number that serves as a starting point for a numerical system
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equation
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a mathmatical sentence formed by placing an equal sign between two expressions
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solution
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a number that can be substituted for a variable to make the equation true
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solving an equation
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finding the solution to an equation
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formula
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an equation that relates twoor more quantities such as perimeter, length and width
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perimeter
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the sum of the lengths of its sides
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area
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the amount of surface the figure covers
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d=rt
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distance= rate x time
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