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PEP - Mathematics > PEP Mathematics > Flashcards

PEP Mathematics Flashcards

1
Q

Absolute Value

A

The absolute value of a number is its distance from zero.

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2
Q

Acute Angle

A

An angle whose measure is greater than 0 degrees and less than 90 degrees.

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3
Q

Acute Triangle

A

A triangle in which all three angles are acute angles.

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4
Q

Circumference

A

The distance around a circle. Its length is the product of the diameter of the circle and pi.

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5
Q

Composite Number

A

a number that is not necessarily even, but has more than two factors

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6
Q

Congruent

A

Used to refer to angles or sides having the same measure and to polygons that have the same shape and size.

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7
Q

Conjecture

A

An assumption that is thought to be true based on observations.

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8
Q

Counterclockwise

A

A circular movement opposite to the direction of the movement of the hands of a clock.

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9
Q

Denominator

A

The denominator of a fraction indicates into how many equal parts the whole is divided. The denominator appears beneath the fraction bar.

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10
Q

Diameter

A

A segment with endpoints on the circle that passes through its center.

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11
Q

Dividend

A

The quantity that is to be divided.

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12
Q

Divisor

A

The quantity by which the dividend is divided.

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13
Q

Elements

A

Members of a set.

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14
Q

Equation

A

A math sentence using the equal sign to state that two expressions represent the same number.

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15
Q

Equilateral Triangle

A

An equilateral triangle is a triangle with three congruent sides. An equilateral triangle also has three congruent angles, which we can also call equiangular triangle.

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16
Q

Exponent

A

Suppose that n is a whole number. Then, for any number x, the nth power of x, or x to the nth power, is the product of n factors of the number x. This number is usually written x^n. The number x is usually called the base of the expression x^n, and n is called the exponent.

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17
Q

Exponential Notation

A

A notation that expresses a number in terms of a base and an exponent.

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18
Q

Factor

A

An integer that divides evenly into a dividend. Use interchangeably with divisor except in the Division Algorithm.

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19
Q

Greatest Common Factor, GCF

A

Suppose m and n are positive integers. An integer d is a common factor of m and n if d is a factor of both m and n. The greatest common factor, or GCF, of m and n is the greatest positive integer that is a factor of both m and n. We write the GCF of m and n as GCF (m,n).

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20
Q

Hypotenuse

A

The side opposite the right angle in a right triangle.

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21
Q

Improper Fraction

A

A fraction in which the numerator is greater than or equal to the denominator.

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22
Q

Integers

A

The collection of integers is composed of the counting numbers, the negatives, and zero; … −4, −3, −2, −1, 0, 1, 2, 3, 4…

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23
Q

Isosceles Triangle

A

A triangle with at least two sides of equal length.

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24
Q

Least Common Denominator

A

The least common denominator of the fractions p/n and k/m is the least common multiple of n and m, LCM(n, m).

25
Q

Least Common Multiple, LCM

A

The integers a and b are positive. An integer m is a common multiple of a and b if m is a multiple of both a and b. The least common multiple, or LCM, of a and b is the smallest integer that is a common multiple of a and b. We write the LCM of a and b as LCM (a,b).

26
Q

Line graph

A

A graph used to display data that occurs in a sequence. Consecutive points are connected by segments.

27
Q

Mean

A

The average of a set of data; sum of the data divided by the number of items. Also called the arithmetic mean or average.

28
Q

Median

A

The middle value of a set of data arranged in increasing or decreasing order. If the set has an even number of items the median is the average of the middle two items.

29
Q

Mode

A

The value of the element that appears most frequently in a data set.

30
Q

Numerator

A

The expression written above the fraction bar in a common fraction to indicate the number of parts counted.

31
Q

Obtuse Angle

A

An angle whose measure is greater than 90 degrees and less than 180 degrees.

32
Q

Obtuse Triangle

A

A triangle that has one obtuse angle.

33
Q

Parallel Lines

A

Two lines in a plane that never intersect.

34
Q

Parallelogram

A

A parallelogram is a four-sided figure with opposite sides parallel.

35
Q

A parallelogram is a four-sided figure with opposite sides parallel.

A

A way of expressing a number as parts out of 100; the numerator of a ratio with a denominator of 100.

36
Q

Perimeter

A

The perimeter of a polygon is the sum of the lengths of its sides.

37
Q

Perpendicular

A

Two lines or segments are perpendicular if they intersect to form a right angle.

38
Q

Polygon

A

A simple, closed, plane figure formed by three or more line segments.

39
Q

Proper Fraction

A

A fraction whose value is greater than 0 and less than 1.

40
Q

Quadrilateral

A

A plane figure with four straight edges and four angles.

41
Q

Quotient

A

The result obtained by doing division. See the Division Algorithm for a different use of quotient.

42
Q

Radius

A

The distance from the center of a circle to a point on the circle. Plural form is radii.

43
Q

Ratio

A

A division comparison of two quantities with or without the same units. If the units are different they must be expressed to make the ratio meaningful.

44
Q

Right Angle

A

An angle formed by the intersection of perpendicular lines; an angle whose measure is 90º.

45
Q

Right Triangle

A

A triangle that contains a right angle.

46
Q

Scalene Triangle

A

A triangle with all three sides of different lengths is called a scalene triangle.

47
Q

Set

A

A collection of objects or elements.

48
Q

Simplest Form of a Fraction

A

A form of a fraction in which the greatest common factor of the numerator and denominator is 1.

49
Q

Simplifying

A

The process of finding equivalent fractions to obtain the simplest form.

50
Q

Straight Angle

A

An angle with a measure of 180 degrees formed by opposite rays.

51
Q

Trapezoid

A

A four sided plane figure with exactly one set of parallel sides.

52
Q

Variable

A

A letter or symbol that represents an unknown quantity.

53
Q

Venn Diagram

A

A diagram involving two or more overlapping circles that aids in organizing data.

54
Q

Vertex

A

The common endpoint of two rays forming an angle.

A point of a polygon or polyhedron where edges meet.

55
Q

Volume

A

A measure of space; the number of unit cubes needed to fill a three-dimensional shape.

56
Q

Whole Numbers

A

The whole numbers are the numbers in the following never-ending sequence: 0, 1, 2, 3, 4, 5, …. These numbers are also called the non-negative integers.

57
Q

x-axis

A

The horizontal axis of a coordinate plane.

58
Q

y-axis

A

The vertical axis of a coordinate plane.

PEP - Mathematics (1 decks)

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