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Logarithm:The beat of trees being cut down in the Pacific Northwest. Also a mathematical function that is the inverse of b^x for some fixed number called the `base' of the logarithm. Calculator:What is it? A machine used for computation. Solve:What is it? To find the answer to an equation or a problem. Calculator:n. a machine used for computation possibly having computer ability. Mixed fraction:A mixed fraction is a whole number and a fraction combined into one "mixed" number. Exponent:A number that indicates the number of times the base appears as a factor. Expression:A variable or combination of variables, numbers, and operation symbols that represents a mathematical relationship. 6, 2 + 3, x, x + 4, and x + 2y are all expressions . Subtraction:The operation of finding a difference or the process of taking away one number from another to find the quantity left; represented by the symbol . Algebraic equation:an equation of the form f (x) = 0 where f is an polynomial. Two step equation:An equation that has two operations and requires two steps to solve. See Solving Simple Equations. Number:symbol used in counting or measuring. Square meter:The area equal to a square that is 1 meter on each side. Used for measuring areas of rooms, houses, blocks of land, etc. The symbol is m^2 Example: John calculated that he needed to paint 16 square meters of wall. Logarithm:What is it? The inverse of exponentiation; for example, alogax = x. Exercise:A question which you know how to answer. Inequalities:A mathematical sentence built from expressions using one or more of the symbols <, >, ??, or ??. Quadratic:An equation, graph, or data that can be modeled by a degree 2 polynomial. Scientific calculator:What is it? A calculator which displays very large or very small numbers in scientific notation and has powering, square root, changeofsign, and reciprocal keys. 