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# vocab

### math vocabulary

Term | Definition |
---|---|

proportion | an equation stating that two ratios or rates are equivalent. |

origin | the point of intersection of the x-axis and the y-axis in a coordinate system. |

expression | a mathematical language that uses symbols, usually letters, along with numbers. the letters stand unknown numbers. |

area | the number of square units needed to cover the (inside) surface. |

equation | a mathematical sentence that that contains equal (=) sign. |

mean | the sum of the numbers in a set of data divided by the number of pieces of data. |

radius | the distance from the center of the circle to any point on the circle. |

yard | a customary unit of length equal to 3 feet or 36 inches. |

order of operatation | the rules that which operation to perform first when more than one operation is used (PEMDAS). |

diameter | the distance across a circle through the center. |

rhombus | a parallelogram with all sides congruent. |

quadrant | one of the four regions in a coordinate plane separated by an x-axis and a y-axis . |

mode | the number or item that appears most often in a set of data |

perimeter | the distance around any closed geometric figure. |

exponet | in a power the number of times the base is used as a factor. |

variable | a symbol usually a letter used to represent a number. |

percent | a ratio that compares numbers to 100. |

circumference | a distance around a circle. |

foot | a customary unit of length equal to twelve inches. |

median | the middle number in a set of data when the data are arranged in numerical order. if the data has an even number the two middle numbers are added together then divided by two. |

equivalent | having the same value for instance, fractions that have the same number 1/2 2/4. |

mixed number | the sum of a whole number and a fraction for instance 1 1/2 2 1/2. |

reciprocals | any two numbers that have a production of 1 flip flops. |

chord | a segment with endpoints that are on a circle. |

obtuse angle | an angle that measures greater than 90 degrees, but less than 180 degrees. |

ratio | a comparison of two quantities by division |

decimal | numbers that have digits in the tenths, hundredths,thousandths, and beyond. |

outlier | a value that is much higher than or much lower than the other values in a set of data. |

improper fractions | a fraction that has a numerator that is greater than or equal to the denominator. |

coordinates | a pair of numbers used to locate a point in the coordinate system. |

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