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# vocab

### math vocabulary

TermDefinition
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.
Created by: 107926