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### 51 Cards in this Set

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 Factor or Divisor = Any integer that leaves no remainder (i.e a reaminder of 0) when it is dvided into another integer:1, 2, 5, 10 are the factors (or divisors) of 10 Prime Number A positive integer that has exactly two divisors. The first few primes are 2, 3, 5, 7, 11, 13, 17 (not 1) bm bn b raise to m, b raise to n = bm -- = (m -n) bn b m n (b ) = mn b 2 (squ a) = sq a * sq a To compare two fractions convert them to decimals by dividing the numerator by the denominator To multiply two fractions, Multiply their numberator and multiply their denominators 3/5 * 4/7 = 3*4/5*7 = 12/35 To divide any number by a fraction Multiply that number by the reciprocal of the fraction 3/5 divided by 2/3 = 3/5* 3/2 = 9/10 To add or subtract fraction with different denominators, f first rewrite the fraction as equivalent fractions with the same denominator: 1/6+3/4 = 2/12 + 9/12 = 11/12 Percent increase of qty = Actual increase ------------ * 100% Original amount Percent decrease of qty = Atcual decrease ---------- * 100% Original amount Ratio of 2 to 3 = 2/3 or 2:3 Average of set of n numbers = Sum of the numbers ------------------ n Probability = Favorable Outcomes ------------- Total Possible Outcomes Percent Formula Part = Percent * Whole The 3 exterior angles of a triangle add up to 360 degrees In any triangle, the sume of the measure os the three angles is 180 degrees x+y+z = 180 In any triangle 1) The longest side = is the opposite the largest angle 2) the shortest side = is the opposite the smallest angle 3)Sides with the same length = Are opposite angles with the same measure In a 45-45-90 right triangle, the sides are = X, X, and X square 2 In a 30-60-90 right triangles, the sides are = X, X Square 3 and 2X Area of Right trinagle = 1/2 * base * height Area of an equilateral triangle with equal sides = 2 S * Square 3 --------- 4 In any quadrilateral, the sume of the measures of the four angles = 360 degrees For Parallelogram Area = Base * Height Perimeter of Pallelogram = 2(a + b) Area of Rectangele = Length * Width Perimeter of Rectangel = 2(L + W) Area of a Square = 2 S Area of a square can also be = 1 2 - d 2 Perimeter of a square = 4s (s = sides) Diameter of a circle = 2* radiuis Circumference of a Cirle = PI * D = 2 PI R Area of a circle = 2 PI r Length of an Arc (n/360) * (2PI r) Area of a sector, if n is the degree measure of the sector's central angle = 2) (n/360) * (PI r PI * R square Surface Area of Rectangular = 2(LW +LH + WH)= 2LW +LH +2 WH Suface Area of cube = 6e square 6 * e square Volume of a cylider = PI * R square * height Surface of a cylinder = 2PI r h Volume of a Rectangular solid = L * W * H Volume of a cube = 3 L * L * L = L Average speed = Total Distance ---------- Total time Average A per B = Total A ----- Total B Probability formula Probability = Number of Favorable Outcome/ Total no. of Possible Outcomes If E is impossible, then P(E) = 0 If it is certain that E will occur, then P(E)= 1 In all other cases 0