Developmental Math 0920

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Developmental Math 0920

• McKeague PreAlg 4th Ed
• Chapter 4.1
• The distributive property and algebraic
  expressions

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Introduction

• Of you pay 7.00 a month for a water dispenser
  and 2.00 for every gallon, you could represent
  the amount you pay in a month for G gallons of
  water by the following equation

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Example

• Apply the distributive property to the
  expression
• Multiply

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Example

• Simplify
• Simplify

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Examples

• Simplify

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The Value of an Algebraic Equation

• An expression suds as 3x5 takes on a whole new
  meaning depending on the value of x

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Facts from Geometry Angles

• An angle is formed by two rays with the same
  endpoint.
• The common endpoint is called the vertex
• The Rays are called the sides

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Facts from Geometry Angles

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Facts from Geometry Angles

• One degree of angle measure, written 1 is
  of a complete rotation of a ray about its
  endpoint

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Complementary Angles and Supplementary Angles

• Of two angles add up to 90,call them
  supplementary angles

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Example

• Find x in the following diagrams

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Practice

• Problem Set 4.1
• 5, 7

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Practice

• Problem Set 4.1
• 17, 29

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Practice

• Problem Set 4.1
• 33, 45

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Practice

• Problem Set 4.1
• 51, 61

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Practice

• Problem Set 4.1
• 71, 75

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Practice

• Problem Set 4.1
• 79

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Assignment

• Problem Set 4.1
• 2-90 evens