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mod 5 vocab
| Question | Answer |
|---|---|
| counterexample | a statement or example that shows a conjecture is false |
| cube root | One of 3 equal factors of a number. If a to the 3rd=b then a is the cube root of b.The cube root of 64 is 4 since 4 to the 3rd =64 |
| inverse operations | Pairs of operations that undo each other. addition and subtraction are inverse operations. Multiplication. |
| irrational number | A number that cannot be expressed as the ratio a over b, where a and b are integers and b = 0. |
| natural numbers | The set of numbers used for counting. |
| perfect cubes | A numbers whose cube root is an integer. 27 is a perfect cubes because its cube root is 3. |
| perfect square | A number whose square root is a whole number. 25 is a perfect square because its square root is 5. |
| principal square root | The positive square root of a number. |
| radical sign | The symbol used to indicate a positive square root. |
| real number | The set of rational numbers together with the set of irrational numbers. |
| square root | One of the 2 equal factors of a number. If a to the 2nd=b, then a is the square root of b. A square root of 144 is 12 since 12 to the 2nd =144. |
| truncating | A process of approximating a decimal number by eliminating all decimal places past a certain point with out rounding. |
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user-1981858