# MATH TIDBITS FOR GRE TWO

 every rational number can be expressed as a terminating or repeating decimal, BUT WHAT IF ITS SOMETHING LIKE THIS: 0.010110111011110111110. . . THEN ITS IRRATIONAL. IT GOES ON INDEFINITELY. THEY DO NOT TERMINATE (10/2=5) OR REPEAT (1/3 = .33333 WITH A BAR OVER THE LAST 3). WHAT IS THE CLASSIFICATION OF NUMBERS. NATURALWHOLEINTEGERSRATIONAL √(9) is a ________ number. It is because √(9) = 3 Notice that √(9) is a natural number. It is because √(9) = 3 DEFINE: All integers are fractions. Not all fractions are integers. Example: -2 is an integer and can be written as -2/1 to make it a fraction.However, -1/3 = -0.333333333 is not an integer, ITS A RATIONAL NUMBER.  Irrational numbers are numbers that cannot be written as a ___________. Irrational numbers are numbers that cannot be written as a fraction. Another way to see them is that they are neither repeating decimals nor terminating decimals. Examples: pi= 3.14..., 2.224879566117426874, √(7) 24X≤4X≥4 DEFINE triangle inequality. If a is positive and b is negative, then ab is negative. Be careful not to confuse 0.01 with 0.01%. The percent symbol matters! 0.01 = _____% 0.01% = ______ 0.01 = 1% 0.01% = 0.01/100 = 0.0001 WATCH YOUR DECIMAL PLACEMENTS!!! Authorshockwave ID271220 Card SetMATH TIDBITS FOR GRE TWO DescriptionMATH TIDBITS FOR GRE TWO Updated2014-04-20T18:00:01Z Show Answers