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11-1 Real Numbers

11-1 Real Numbers. Standard 2.0 Five Key Terms. Square Root . Every positive number has two square roots, a positive square root and a negative square root. Vocabulary. Principal square root. Radical Sign. 12 and -12 are the square roots of 144. Real numbers Irrational number.

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11-1 Real Numbers

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  1. 11-1Real Numbers Standard 2.0 Five Key Terms

  2. Square Root Every positive number has two square roots, a positive square root and a negative square root. Vocabulary Principal square root Radical Sign 12 and -12 are the square roots of 144

  3. Real numbers Irrational number Consists of the rational numbers and the irrational numbers. A real number that CANNOT be written as a fraction. Vocabulary

  4. 1 4 9 16 25 36 49 64 81 100 121 144 169 196 225 256 289 324 361 400 Perfect Squares

  5. Identifying Real Numbers • State whether the following numbers are rational or irrational.

  6. Square Roots • Find the square root of the following numbers. • 7, -7 • 12, -12 • 15, -15

  7. Approximating Irrational Numbers • Approximate each square root to the nearest thousandth.

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