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NWEA 231-240 Math Flash Cards
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Gravity
Terms in this set (42)
acute triangle
a triangle whose interior angles are all acute
algebraic sentence
Math problem where letters represent numbers.
arc
something curved in shape
arithmetic progression
(mathematics) a progression in which a constant is added to each term in order to obtain the next term
chord
line segment whose endpoints are any two points on a circle
congruent side
sides of a polygon with exactly the same length
convert
to change
corresponding angle
angles that are in the same position;made by a transversal cutting through two other lines
corresponding side
sides that have the same relative position in similar shapes
cross-section area
measure of the size of a surface region that would be exposed by making a straight cut through something, esp. at right angles to an axis
data point
an item of factual information derived from measurement or research
discount
the act of reducing the selling price of merchandise
ellipse
a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it
equality
the quality of being the same in quantity or measure or value or status
expanded notation
A way of writing numbers in which the numbers are written to show the place value of each digit (639 = 600 + 30 + 9)
exponent
a mathematical notation indicating the number of times a quantity is multiplied by itself
half hour
30 minutes
horizontal
Going straight across from side to side
interior angle
the angle inside two adjacent sides of a polygon
interval
the difference between two numbers on the scale
lower quartile
25% quartile. The median of the lower data values in order.
outlier
Any data point that sticks out. NOT all data sets have one.
parabola
a U shaped line on a graph
percentile
A point on the distributionbelow with a certain % of scores fall. Ex: Scored in the 99th percentile = only 1% scored higher than you
power
a mathematical notation indicating the number of times a quantity is multiplied by itself
quadrupled
Increases by four times
range
the difference between the highest and lowest scores in a distribution
right angle
the 90 degree angle between two perpendicular lines
sample
a small part of something intended as representative of the whole
scale factor
a number used as a multiplier in scaling
scientific notation
A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10.
secant
a line that intersects a circle in two points
slope
the steepness of a line on a graph, equal to its vertical change divided by its horizontal change
square pyramid
a solid figure with a square base and four faces that are triangles
successive
following in order
tangent
a line that intersects a circle at exactly one point
tax
charge against a citizen's person or property or activity for the support of government
tenth power
using one number as a factor ten times; 10^10=10000000000
tessellation
A pattern that covers a plane by transforming the same figure or set of figures so that there are no overlapping or empty spaces
tripled
multiplying by three
vertical
Straight up and down
vector
a quantity that has both size and direction
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