# Section 2 Equations and Inequalities

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﻿Section 2 Equations and Inequalities

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No HW Quiz #1.9-10 Pass Your HW to the front!

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2.1 More on Solving Equations

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Objective : Solve conditions containing divisions or decimals. At the point when a condition contains portions or decimals, we can utilize the increase property to kill them. The procedure is called c learing the condition of parts or decimals.

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Solving an Equation with Decimals Solve the condition by clearing it of all decimals first.

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A B C Solve the condition by clearing it of all divisions or decimals first.

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Objective : Use the guideline of zero items to unravel conditions. Fathoming an Equation with Zero Products

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Solving an Equation with Zero Products

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Solving an Equation with Zero Products Solve the condition utilizing the zero items property.

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Solving an Equation Solve the condition

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Solving an Equation Solve the condition

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2.2 Using Equations

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Objective : Solve issues by meaning conditions.

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Objective : Solve issues by meaning conditions. A 23-ft link is cut into two pieces, one three circumstances the length of the other. To what extent are the pieces?

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Herman is doing an examination that requires a 40% arrangement of copper sulfate. He has a 60ml of an answer that is 25% copper sulfate. What number of milliliters of a 70% arrangement ought to Herman add to acquire the required 40% arrangement?

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Two autos leave the 7-11 in the meantime going in a similar course. One auto is going 45 mph and the other auto is going 58 mph. In 2.5 hours how far separated would they say they are?

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A famous music CD was marked down 25% to \$8.42. What was the first cost?

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Write a condition and utilize it to settle the accompanying F A tank at a marine show contains 2000 gallons of ocean water. The ocean water is 7.5% salt. What number of gallons, to the closest gallon, of new water must be added to the tank so that the blend contains just 7% salt?

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HW #2.1-2 Pg 64 15-41 Odd, 42-46 Pg 70 19-27 Odd

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HW Quiz #2.1-2 Tuesday, March 11, 2014

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2.3 Solving Formulas

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Objective : Solve a recipe for a predefined letter. Explaining a Formula for a particular variable An equation is an administer for doing a particular estimation.

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Solving a Formula for a particular variable

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Solving a Formula for a particular variable

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Solving a Formula for a particular variable

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2.4 Solving Inequalities 2.5 Using Inequalities

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Objective : Determine if a number is an answer of an imbalance and diagram the arrangement set. In the event that a number jumps out at the left of another on the number line, the primary number is not as much as the second, and the second is more noteworthy than the first.

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Objective : Determine if a number is an answer of an imbalance and diagram the arrangement set. Figure out if the given number is an answer of the imbalance. x + 3 < 6;5 3 - x < 2; 4 3x + 2  4x - 3; 5

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Determine whether the given number is an answer of the imbalance. C: x - 3 < 6;5 D: 3x + 2  4x - 3; 6

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Objective : Solve and chart disparities utilizing the expansion property.

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Solving an Inequality

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Objective : Solve and chart disparities utilizing the duplication property.

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Solving an Inequality

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Solving an Inequality

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F E

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Solving an Inequality

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Solving an Inequality

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HW #2.3-5 Pg 72 17-23 Odd, 25-31 Pg 77 19-27 Odd, 28-38 Pg 81 10-18

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HW Quiz #2.3-5 Tuesday, March 11, 2014

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2.6 Compound Inequalities

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Objective : Solve compound disparities. A compound disparity is two straightforward imbalances joined by "and" "or." Statements including "or" are called disjunctions. A disjunction is genuine when no less than one of the announcements is genuine Statements including "and" are called conjunctions. For a conjunction to be genuine every individual explanation must be valid

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Conjunctions In science, conjunction is called convergence and is symbolized by the image: 

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Disjunctions In arithmetic, disjunction is called union and is symbolized by the image: 

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Solve the accompanying imbalances. Diagram your answer on a number line and think of them in interim documentation.

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Write and comprehend a compound imbalance that is the conjunction of two disjunctions. Compose an imbalance that has no arrangement and show it has no arrangement. Compose an imbalance whose arrangements are all genuine numbers and show why the arrangements are all genuine numbers.

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HW #2.6 Pg 85-86 1-31 Odd, 33-45

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HW Quiz #2.6 Tuesday, March 11, 2014 Row 1, 3, 5 Row 2, 4

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2.7 Absolute Value

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|2| = |-2| = 2

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Objective : Simplify total esteem expressions.

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Objective : Find the separation between two focuses utilizing total esteem.

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Objective : Solve and diagram conditions and imbalances including total esteem.

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Objective : Solve and chart conditions and disparities including outright esteem.

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Objective : Solve and diagram conditions and imbalances including outright esteem.

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Objective : Solve and diagram conditions and disparities including total esteem.

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Objective : Solve and diagram conditions and imbalances including total esteem.

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Objective : Solve and chart conditions and imbalances including total esteem.

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Objective : Solve and chart conditions and imbalances including total esteem.

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Objective : Solve and diagram conditions and imbalances including outright esteem.

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HW #2.7 Pg 91 1-37 Odd, 38-51

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HW Quiz #2.7 Tuesday, March 11, 2014 Row 1, 3, 5 Row 2, 4, 6

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2-8 Proofs in Solving Equations

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Test 1-2 Part 1-5Questions 2-proofs Any Proof in the HW Any Proof I did in class 1-Closure 2 inquiries without any numbers

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Objective : Prove contingent proclamations. Contingent Statements Antecedent Hypothesis Consequence Conclusion To demonstrate a restrictive articulation you accept the Hypothesis and Show the conclusion should likewise be valid.

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Use a two section confirmation or story verification

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Objective : Write and demonstrate the opposite of a restrictive proclamation. Contingent Statement Converse of the Conditional Statement To demonstrate a the opposite of a restrictive explanation you accept the Conclusion and Show the Hypothesis should likewise be valid.

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Objective : Solve conditions and disparities by demonstrating an announcement and its opposite. Biconditional

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HW #2.8 Pg 96-97 1-21 Odd, 23-32

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Test Review Topics Simplify – Order of Operations Solve Equations Exponents – Multiply/Divide – Negative Exponents Word Problem Compound Inequalities – Interval Notation Absolute Value Sign Charts Solve for a Variable Factoring – to illuminate quadratics

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A bag of cash contains b hundred dollar greenbacks. After the bills are circulated uniformly among g government operators, 8 hundred dollars bills are left over. As far as b and g, what number of hundred dollar notes did every operator get?

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If a Citation Jet goes at a normal speed of x miles every hour, how long would it take the Citation to travel 800 miles?

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HW R1-2 Study Hard

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Find the zone of an equilateral triangle