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### 14 Cards in this Set

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 The distance a number is from zero on the number line. For example, -5 is 5 units away from zero. It would be written as |-5| absolute value An angle whose measure is less than 90 degrees acute angle The operation, or process, of calculating the sum of two numbers or quantities addition Two angles that share a ray, thereby being directly next to each other adjacent angles Affine ciphers use linear functions to scramble the letters of secret messages affine cipher Step-by-step procedure by which an operation can be carried out algorithm Angles located outside a set of parallel lines and on opposite sides of the transversal alternate exterior angles Angles located inside a set of parallel lines and on opposite sides of the transversal alternate interior angles A ray that divides an angle into two congruent angles angle bisector The number of square units needed to cover a surface area This property applies both to multiplication and addition and states that you can group several numbers that are being added or multiplied (not both) in any way and yield the same value. In mathematical terms, for all real numbers a, b, and c, (a+b)+c=a+(b+c) or (ab)c=a(bc) associative property It is better to avoid this sometimes vague term. It usually refers to the (arithmetic) mean, but it can also signify the median, the mode, the geometric mean, and weighted means, among other things average An estimate of the amount that will be gained in a game of chance, calculated by multiplying the probability of winning by the number of points won each time average expected payoff There are three axioms of probability: 1. Probability is always more than zero 2. The chance that something happens is 1,or 100% 3. If two events cannot both occur at the same time, the chance that either one occurs is the sum of the chances that each occurs axioms of probability