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Warm Up. Find each quotient 1. -98.44/-4.6 2. -7 divided by 3/5 3. -3/4 divided by 12. Answers. 21.4 -35/3 -1/16. 2-7 Square Roots and Real Numbers Objectives: The student will be able to:. 1. find square roots 2. classify and order real numbers.

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## Warm Up

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**Warm Up**• Find each quotient 1. -98.44/-4.6 2. -7 divided by 3/5 3. -3/4 divided by 12**Answers**• 21.4 • -35/3 • -1/16**2-7 Square Roots andReal NumbersObjectives:The student will**be able to: 1. find square roots 2. classify and order real numbers**A square rootis one of two equal factors of a number.**If x2 = y then x is a square rootof y. In the expression , is the radical sign and 64 is the radicand.**What numbers are perfect squares?**1 • 1 = 1 2 • 2 = 4 3 • 3 = 9 4 • 4 = 16 5 • 5 = 25 6 • 6 = 36 49, 64, 81, 100, 121, 144, …**1. Find the square root:**8 2. Find the square root: -0.2 3. Find the square root: ±11 4. Find the square root:**5. Use a calculator to find .**Round the decimal answer to the nearest hundredth.**Rational numbers can be written as terminating or repeating**decimals, or fractions. Irrational numberscannot be written as terminating or repeating decimals, or fractions. Examples: Note:3 and 24 are not perfect squares**The set of real numbers consists of the set of rational**numbers and the set of irrational numbers. Real Numbers Rational Numbers Irrational Numbers Integers Whole Numbers Natural Numbers**Examples:**Name the set or sets to which real number belongs. 1. 3. 2. 4. -327**1. irrational**2. rational 3. natural number, whole number, integer, rational number 4. -327 integer, rational number**You can write a set of real numbers in order from greatest**to least or least to greatest. To do so, find a decimal approximation for each number in the set.**Write and in order from least to**greatest.

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