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### 42 Cards in this Set

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 PEMDAS Parentheses,exponents,multiplication,division,addition,subtraction Median & Mode Median: value that falls in the middle Mode: value that appears most often. Possibilities If there are M ways one event can happen and N ways a second event can happen then there are MxN ways for the 2 events to happen. Average rate formula average A per B= Total A/Total B Average speed total distance/total time average sum of terms/number of terms Probability Favorable outcomes/total possible outcomes Percent formula part=percent x whole or percent= part/whole Multiplying powers to multiply powers with the same base, add the exponents and keep the same base. Dividing powers To divide powers with the same base, subtracet the exponents and keep the same base. Raising powers to powers to raise a power to a power, multiply the exponents Functions: Direct and Inverse Variation In direct variation, y=kx, where k is a nonzero constant. In inverse variation, xy=k, where k is a constant Function: Domain and Range The domain of a function is the set of values for which the function is defined. Absolute value The absolute value of a number is the distance of the number from zero on the number line. Multiplying binomials- Foil To multiply binomials use FOIL First, outer, inner, last Solving an inequality when you multiply or divide both sides by a negative number, you must reverse the sign. Using two points to find the slope slope=change in y/changen in x or Rise/Run Slope intercept y=mx+b Midpoint if the endpoints are (x1,y1) and (x2,y2), the midpoint is: Intersecting lines when two lines intersect, adjacent angles are supplementary and vertical angles are equal 5-Step method for Quantitative Comparisons Step 1: Compare piece by piece Step 2: Make one column look like the other Step 3: Do the same thing to both columns Step 4: Pick numbers Step 5: Redraw the diagram Geometry Interior and Exterior angles of a triangle The 3 angles of any triangle add up to 180 degrees. The 3 exterior angles of any triangle add up to 360 degrees. Area of a Triangle 1/2 (base)(height) Pythagorean Theorem For all right triangles: Special right triangles 3-4-5 triangle 30-60-90 triangle 5-12-13 triangle 45-45-90 triangle Area of a rectangle length x width Area of a Parallelogram base x height Lenght of an arc if N is the degree measure of the arc's central angle, then the formula is: Area of a sector If N is the degree measure of the sector's central angle, then the formula is: Interior angles of a polygon The sum of the measures of the interior angles of a polygon= (n-2) x 180, where N is the number of sides Surface area of a rectangle (solid) 2lw + 2wh + 2lh Volume of a rectangular solid Volume of a rectangular solid=lwh Volume of a cube= Factoring the difference of squares . Factoring the square of a binomial . Quadratic Equation . Finding the distance between two points . Area of a circle . Area of a square . Circumference of a circle . Wolume of a Cylinder . Negative exponent . Rational Exponent .