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mod 5 vocab
| Question | Answer |
|---|---|
| counterexample | A statement or example that shows a conjecture is false. |
| cube root | One of three equal factors of a number.If a³ = b ,then a is the cube root of b.The cube root of 64 is 4 since 4³=64 |
| inverse operations | Pairs of operations that undo eachother. Addition and subtraction are inverse operations.Multiplication and division are inverse operations |
| irrational number | A number that cannot be expressed as the ratio a/b where a and b are integers and b does not equal 0 |
| natural numbers | The set of numbers used for counting. |
| perfect cube | A number whose cube root is an integer.27 is a perfect cube because its cube root is 3 |
| perfect square | A number whose square root is a whole number.25 is a perfect square because kts square root is 5 |
| principal square root | the positive square root of an number |
| radical sign | the symbol used to indicate a positive square root |
| real number | the set of rat numbers together with a set of irrat numbers |
| square root | a square root of 144 is 12 since 12^2 =144 |
| truncating | A process of approximating a decimal number by eliminating all decimal places past a certain point without rounding. |
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