GED Math STUDY GUIDE VERIFIED CORRECT QUESTIONS AND ANSWERS LATEST UPDATED VERSION (GRADED A+)

Square pyramid - Answer️a 3-dimensional figure whose base is a square and each of whose four triangular faces meet a a common point called the vertex Straight angle - Answer️an angle that measures exactly 180 degrees Supplementary angles - Answer️angles whose sum is 180 degrees Surface area - Answer️the total area of the surface of a three-dimensional object Tangent - Answer️for an acute angle in a right triangle, the ratio of the opposite side to the adjacent side; abbreviated as tan Transversal - Answer️a line that cuts across parallel lines, intersecting each of them Trapezoid - Answer️a four-sided figure with one pair of parallel sides Triangle - Answer️a closed plane figure with three sides and three angles Trigonometry - Answer️the study of the relationship between pairs of right sides in triangles Vertex - Answer️the point where two sides of a closed figure or two sides of an angle meet Vertical angles - Answer️angles formed when two lines intersect. Vertical angles lie across from each other and are equal Volume - Answer️the amount of space inside a 3-dimensional figure, usually measured in cubic units Absolute value - Answer️the distance from a number to zero on the number line Associative property - Answer️for addition and multiplication, three numbers that can be grouped in any order. The sum or product will be the same. For any number a, b, and c, (a+b)+c = a+(b+c) and (ab)c = a(bc) Average (mean) - Answer️the sum of a set of numbers divided by the number of numbers in a set Coefficient - Answer️a number or symbol multiplied with a variable or an unknown quantity in an algebraic term Commutative property - Answer️for addition and multiplication, numbers can be added or multiplied in any order. The sum or product will be the same. For any numbers a and b, a+b+=b+a and ab=ba Consecutive - Answer️one following the other, for example, 19 and 20 are consecutive numbers Cube root - Answer️the opposite of the cube of a number; a square root, but to the 3rd power, rather than the 2nd. (the cube root of 8 is 2, because 2 x 2 x 2 = 8) Data - Answer️a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things Decimal - Answer️a fraction in which the whole is divided into tenths, hundredths, thousandths, ten-thousandths, and so on Difference - Answer️the answer to a subtraction problem Digit - Answer️one of the ten number symbols. The digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Distributive property - Answer️when multiplying a number by a sum or a difference, you may first multiply each number in the sum or difference, or you can find the sum or difference and then multiple. For any numbers a, b, and c, a(b+c) = ab+bc and a(b-c) = ab-ac. Equation - Answer️a statement that two amounts are equal Estimate - Answer️as a noun: an approximate value. as a verb: to find an approximate value. Evaluate - Answer️to find the value of a numerical or algebraic expression; to solve an equation Even number - Answer️a whole number that is evenly divisible by 2 Exponent - Answer️a number that tells the power to which a base is raised. For example, in 3^2, the base is 3 and the exponent is 2. Expression - Answer️numbers, symbols and operators (such as + and ×) grouped together that show the value of something. Example: 2×3 is an expression Factor - Answer️as a noun: a number that divides evenly into another number as a verb: to write a number or an algebraic expression as a product of two or more terms Formula - Answer️a mathematical rule that tells the relationship between quantities Frequency - Answer️how often something happens (usually during a period of time) Grouping symbols - Answer️symbols such as parentheses or the fraction bar that tell which operation to do first Inequality - Answer️a statement that two amount are not equal. For example, (less than) or (greater than) Integer - Answer️positive and negative whole numbers and zero Irrational number - Answer️any real number that cannot be expressed as a ratio of integers. Irrational numbers cannot be represented as terminating or repeating decimals. Matrix - Answer️a rectangular array of numbers or other mathematical objects, for which operations such as addition and multiplication are defined. Mean - Answer️the sum of a set of numbers divided by the number of numbers in a set (AKA average) Median - Answer️a number in the middle of a set of numbers, or the mean of the two middle numbers in a set Mode - Answer️The mode of a set of numbers is the one that occurs most often. So, in the set {1,5,7,5,9}, the mode is 5 because there are 2 fives and only one of each of the others. Negative number - Answer️a number less than zero Number line - Answer️a line used to represent positive numbers, negative numbers, and zero Odd number - Answer️a whole number that is not evenly divisible by 2 Place value - Answer️the number that a digit stands for. For example, in 35.6, the digit 3 stands for 30 because 3 is in the tens place. The digit 6 stands for 6/10 because 6 is in the tenths place. Positive number - Answer️a number greater than zero Power - Answer️a product of identical factors. For example, 3^2, or "3 to the second power" means 3x3. The base is 3 and the exponent is 2. Prime number - Answer️a number that is evenly divisible only by itself and 1 Product - Answer️the answer to a multiplication problem Quotient - Answer️the answer to a division problem Rational number - Answer️a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8 is a rational number because it can be written as the fraction 8/1 Rounding - Answer️making an estimate that is close to an original amount Square root - Answer️one of two equal factors of a number Sum - Answer️the answer to an addition problem Unit rate - Answer️describes how many units of the first type of quantity corresponds to one unit of the second type of quantity. Some common unit rates are miles (or kilometers) per hour, cost per item, earnings per week, etc. Whole number - Answer️a number that is evenly divisible by 1 Box plot - Answer️a way of graphically depicting groups of numerical data through their quartiles Consecutive - Answer️one following the other, for example, 19 and 20 are consecutive numbers Data - Answer️a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things Dot plot - Answer️a graphical display of data using dots Event - Answer️a set of possible outcomes resulting from a particular experiment. For example, a possible event when a single six-sided die is rolled is {5, 6}. That is, the roll could be a 5 or a 6. Frequency - Answer️how often something happens (usually during a period of time) Function - Answer️a special relationship where each input has a single output. It is often written as "f(x)" where x is the input value Graph - Answer️a diagram that shows a relationship among numbers Histogram - Answer️a graphical representation of the distribution of numerical data Matrix - Answer️a rectangular array of numbers or other mathematical objects, for which operations such as addition and multiplication are defined. Mean - Answer️the sum of a set of numbers divided by the number of numbers in a set (AKA average) Median - Answer️a number in the middle of a set of numbers, or the mean of the two middle numbers in a set Mode - Answer️The mode of a set of numbers is the one that occurs most often. So, in the set {1,5,7,5,9}, the mode is 5 because there are 2 fives and only one of each of the others.