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NWEA Math RIT >250
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Gravity
NWEA Math Vocabulary for RIT scores above 250
Terms in this set (53)
central angle
An angle whose vertex is the center of the circle
coordinate Plane
A coordinate system formed by the intersection of a horizontal number line, called the x-axis, and a vertical number line, called the y-axis.
exterior angle
An angle found on the outside of a shape or object.
feet per second
how many feet are traveled in one second
heptagon
A polygon with 7 sides
hexagon
6 sided polygon
inscribe
To draw a figure within another so that their boundaries touch but do not intersect.
polynomial
A mathematical expression that is the sum of a number of terms
quartile
A division of the total into four intervals, each one representing one-fourth of the total.
regular hexagon
six-sided figure whose sides are all the same length and whose angles are all the same size
representative sample
A sample that accurately reflects the characteristics of the population as a whole
right cylinder
A cylinder with the axis perpendicular to both bases.
right pyramid
the top of the vertex of a pyramid is directly above the center of the base
slant height
In a pyramid, the distance from the common vertex to the midpoint of an edge of the base.
slope-intercept form
a linear equation written in the form y=mx+b where m is the slope and b is the y-intercept of the equation's graph
solution set
The set of all values of the variable that make the equation true.
square kilometer
The area equal to a square that is 1 kilometer on each side.
supplementary angle
Angles that add to 180 degrees.
time and a half
An overtime pay rate of 1 1/2 times the regular hourly rate.
transversal
a line that intersects two or more lines
undefined
Any number divided by 0
variable
A letter used to represent one or more numbers
x-coordinate
The first number of an ordered pair
y-coordinate
The value on the y-axis used to locate a point on the coordinate graph. It is the second value in an ordered pair.
y-intercept
The point where the graph crosses the y-axis. In a linear equation of the form y=mx+b. the y-intercept is the constant b.
adjacent side
In a polygon, two sides that intersect to form a vertex.
axis
A horizontal or vertical line that establishes the relationship between data in a chart.
circular
(adj) In some way like a circle, round; indirect
collinear
2 or more points on the same line
cosecant
ratio of the hypotenuse over opposite side
cosine
ratio of the adjacent side to the hypotenuse of a right-angled triangle
counterexample
an example that proves a statement false
depreciate
To decrease in value
empty set
The solution set for an equation that has no solution
geometric series
The sum of the terms of a geometric sequence
line symmetry
a line that divides a figure into 2 halves that match exactly when the figure is folded on that line
opposite side
Side across from the angle
point symmetry
a specific type of rotational symmetry when a figure rotates onto itself after a rotation of exactly 180º
regular pentagon
5-sided figure with ALL sides and angles congruent (equal)
rotational symmetry
The ability of a figure to be rotated less than a full circle and exactly match its original image
semi-annual
twice a year
sine
the ratio of the side opposite a given acute angle to the hypotenuse.
trigonometric function
function of an angle expressed as a ratio of the sides of right-angled triangle containing the angle
trigonometric relationship
the measurements and relationships of a triangle and its parts
x-intercept
the x-coordinate of a point where a graph crosses the x-axis
axis of symmetry
A line that divides a figure in half so that each half is the mirror image of the other
bisector
A ray that divides an angle into two congruent angles
perpendicular bisector
A line that is perpendicular to a segment at its midpoint.
decagon
10 sided polygon
exponential
Growth in which some quantity, such as population size or economic output, increases at a constant rate per unit of time.
identity
An equation that is true for all values of the variable.
inverse
If not a, then not b
reciprocal
(mathematics) one of a pair of numbers whose product is 1: the reciprocal of 2/3 is 3/2
THIS SET IS OFTEN IN FOLDERS WITH...
NWEA Math RIT Scores 231-240
59 terms
NWEA Math RIT 221-230
56 terms
NWEA Math RIT Score 191-200
60 terms
NWEA Math Vocabulary RIT 241-250
22 terms
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