8th Math Ch 4 Exponents and Roots Vocab
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12 terms
Terms | Definitions |
|---|---|
 base | the number or expression that is used as a factor in a repeated multiplication |
| exponent | a mathematical notation indicating the number of times a quantity is multiplied by itself |
| exponential form | the form of a number that is written as a base with an exponent |
| hypotenuse | the side of a right triangle opposite the right angle |
| leg | the 2 sides that make the right angle in a right triangle |
| perfect square | the product when a whole number is multiplied by itself |
| power | a mathematical notation indicating the number of times a quantity is multiplied by itself |
| principal square root | the positive square root of a number |
| Pythagorean Theorem | a²+b²=c² |
| real number | all rational or irrational numbers; real numbers can be represented on the real number line |
| scientific notation | A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10. |
| irrational number | A number whose decimal form is nonterminating and nonrepeating. Irrational numbers cannot be written in the form a/b, where a and b are integers (b cannot be zero). So all numbers that are not rational are irrational. |
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