Warm Up Simplify. 1. 52 2. 82 25 64 3. 122 4. 152 144 225 5. 202 400.

Slides:

Advertisements

Similar presentations

Preview Warm Up California Standards Lesson Presentation.

Advertisements

Pre-Algebra 3-8 Squares and Square Roots Warm Up Simplify

Algebra 9.1 Square Roots I will use the inverse of perfect squares to find approximate values of square roots. I will use square roots to evaluate radical.

Finding Square Roots 3.9.

Course Squares and Square Roots Warm Up Simplify

3-8 Warm Up Problem of the Day Lesson Presentation

Squares and Square Roots

HW # 48- p. 194 # 1-37 odd Warm up Week 14, Day Two Simplify x 2 * y 7 * x -1 * y 3.

Squares and Square Roots Students will be able to find square roots. Students will describe in writing what is meant by a perfect square. 4-5 Warm Up Warm.

Course Estimating Square Roots 4-6 Estimating Square Roots Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson.

Course Estimating Square Roots Warm Up Find the two square roots of each number. Evaluate each expression. 12

Evaluating Algebraic Expressions 4-6Squares and Square Roots NS2.4 Use the inverse relationship between raising to a power and extracting the root of a.

Find the two square roots of each number.

4.1 Exponents, p168. Find the product │ –7 –7 –7│ = (8) = 4. ÷ (8) = (-6) ⁴ = (–6) (–6) (–6) ● (-6) = -6 ⁴ = –1 ( ● 6.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Page 142 & Spiral Review Answers

S OLVING FOR R ADIUS AND D IAMETER. W HAT IF WE WANTED TO FIND THE RADIUS AND DIAMETER OF A CIRCLE GIVEN THE AREA ? Use π = 3.14 to find the radius of.

Squares and Square Roots

Evaluating Algebraic Expressions 4-6Squares and Square Roots NS2.4 Use the inverse relationship between raising to a power and extracting the root of a.

Squares and Square Roots 4-5 Warm Up on warm up paper: Homework Textbook 7.1 pg 292 # 1-3, 9 – 13, Solve and graph 2x - 3 > 19 Use order of operations.

Squares and Square Roots

Evaluating Algebraic Expressions 4-6Squares and Square Roots Warm Up Warm Up Lesson Presentation Lesson PresentationPreview.

Squares and Square Roots. Vocabulary Square root- A number that when multiplied by itself forms a product. Principal square root- the nonnegative square.

4.6/4.7 Squares and Square Roots/Estimating Square Roots, p192/96 Warm Up Simplify = = = = = NS2.4 Use the inverse.

Squares and Square Roots 4-5 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes.

Warm Up Simplify

Learn to estimate square roots and solve problems using square roots.

Course Estimating Square Roots 4-6 Estimating Square Roots Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson.

Squares and Square Roots 3-5 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes.

4-6 Estimating Square Roots Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes.

4.6/4.7 Squares and Square Roots/Estimating Square Roots, p192/96 Warm Up Simplify = = = = = NS2.4 Use the inverse.

Page 148 #1-13 ANSWERS Pre-Algebra 3-9 Finding Square Roots Student Learning Goal Chart Lesson Reflections 3-9.

Lesson 7.2: Cube roots Objectives: To determine the cube root of a number. To Solve a cube root equation. EQ: How do you evaluate a cube root expression?

3-6 Estimating Square Roots Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes.

Course Estimating Square Roots Warm Up Find the two square roots of each number. Evaluate each expression. 12

3-9 Finding Square Roots Warm Up Problem of the Day

Write each fraction as a decimal.

Quadratic Equation Unit

9/8/17 Squares and Square Roots Pre-Algebra.

3-9 Finding Square Roots Warm Up Problem of the Day

3-9 Finding Square Roots Warm Up Problem of the Day

Warm-up Estimate the following to the thousandths place

Squares and Square Roots

Preview Warm Up California Standards Lesson Presentation.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Estimating Square Roots

Warm Up Find each square root. Solve the equation. 3. 2x – 40 = 0 1.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Squares and Square Roots

Square Roots and Real Numbers

SHAPE & SPACE Squares & Square Roots.

Square Roots and Real Numbers

Square Roots and Real Numbers

Find the two square roots of each number.

Warm Up Simplify

Perfect Squares Lesson 12

Learn to find square roots.

to estimate square roots to a given number of decimal places and

Lesson 9.1 Square Roots Essential Question: How do you find and approximate square roots of numbers?

3-8 Warm Up Problem of the Day Lesson Presentation

Square Roots and Real Numbers

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

3-8 Warm Up Problem of the Day Lesson Presentation

3-9 Finding Square Roots Warm Up Problem of the Day

Warm Up Simplify

Perfect Squares Lesson 12

Solving Quadratic Equations by Finding Square Roots

Square Roots and Real Numbers

Warm Up Simplify

Presentation transcript:

Warm Up Simplify. 1. 52 2. 82 25 64 3. 122 4. 152 144 225 5. 202 400

Think about the relationship between the area of a square and the length of one of its sides. area = 36 square units side length = 36 = 6 units Square root: A number that when multiplied by itself, forms a product. Taking the square root of a number is the inverse of squaring the number. 62 = 36 36 = 6

Every positive number has two square roots, one positive and one negative. principle square root: non-negative square root. Principle square root Negative square root - perfect square: a number that has integers as its square roots. Ex: 1, 4, 9, 25, 64, 81 Caution!

Example 1: Positive and Negative Square Roots Find the two square roots of each number. A. 49 D. 25 25 = 5 49 = 7 25 = –5 – 49 = –7 – B. 100 E. 144 100 = 10 144 = 12 100 = –10 – 144 = –12 – C. 225 F. 289 289 = 17 225 = 15 289 = –17 – 225 = –15 –

Example 2: Application A square window has an area of 169 square inches. How wide is the window? 13 Use the positive square root; a negative length has no meaning. The window is 13 inches wide. The area of a square is s2, where s is the length of a side. Remember!

Check It Out: Example 2 A square shaped kitchen table has an area of 16 square feet. Will it fit through a van door that has a 5 foot wide opening? Write and solve an equation to find the area of the kitchen table 16 = 4 Use the positive square root; a negative length has no meaning. So the table is 4 feet wide, which is less than 5 feet, so it will fit through the van door.

Example 3: Evaluating Expressions Involving Square Roots Simplify the expression. 25 16 3 4 A. 3 36 + 7 B. + = 3(6) + 7 3 4 = + 1.5625 = 18 + 7 3 4 = 25 = 1.25 + = 2

Check It Out: Example 3 Simplify the expression. 18 t2 1 4 + A. 2 25 + 4 B. = 2(5) + 4 1 4 = + 9 = 10 + 4 1 4 = 3 + = 14 1 4 = 3

Lesson Quiz Find the two square roots of each number. 1. 81 2. 2500 Evaluate each expression. 3. 3 16 + 1 4. 7 9 – 2 49 9 50 13 7 5. Ms. Estefan wants to put a fence around 3 sides of a square garden that has an area of 225 ft2. How much fencing does she need? 45 ft