EBK COLLEGE ALGEBRA6th EditionDugopolski Publisher: PEARSONISBN: 8220100802799
EBK COLLEGE ALGEBRA
Solutions for EBK COLLEGE ALGEBRA
Problem 4FT:
True or False? Explain. The equation (x–3)(2x + 5) = 0 is equivalent to x = 3 or x = 5 2 .Problem 6FT:
True or False? Explain.
6. If , then
Problem 7FT:
True or False? Explain. If b = 0, then ax2 + bx + c = 0 cannot be solved by the quadratic formula.Problem 10FT:
True or False? Explain. A quadratic equation with real coefficients might have only one real...Problem 1E:
Fill in the blank
1. An equation of the form ax2 + bx + c = 0 where a, b, and c are real numbers...Problem 2E:
Fill in the blank.
2. The equation ax2 + bx + c = 0 can be solved by using the _______ formula.
Problem 5E:
Solve each equation by factoring.
5.
Problem 8E:
Solve each equation by factoring. b 2 − 4 b = 12Problem 9E:
Solve each equation by factoring. 2x25x3=0Problem 12E:
Solve each equation by factoring.
12.
Problem 13E:
Solve each equation by factoring.
13.
Problem 15E:
Use the square root property to find all real or imaginary solutions to each equation. x 2 − 5 = 0Problem 16E:
Use the square root property to find all real or imaginary solutions to each equation.
16.
Problem 17E:
Use the square root property to find all real or imaginary solutions to each equation. 3 x 2 + 2 = 0Problem 18E:
Use the square root property to find all real or imaginary solutions to each equation. 2 x 2 + 16 =...Problem 19E:
Use the square root property to find all real or imaginary solutions to each equation. ( x − 3 ) 2 =...Problem 20E:
Use the square root property to find all real or imaginary solutions to each equation. ( x + 1 ) 2 =...Problem 21E:
Use the square root property to find all real or imaginary solutions to each equation. ( 3 x − 1 ) 2...Problem 22E:
Use the square root property to find all real or imaginary solutions to each equation. ( 5 x + 2 ) 2...Problem 23E:
Use the square root property to find all real or imaginary solutions to each equation. ( x − 1 2 ) 2...Problem 24E:
Use the square root property to find all real or imaginary solutions to each equation. ( 3 x − 1 ) 2...Problem 25E:
Use the square root property to find all real or imaginary solutions to each equation. ( x + 2 ) 2 =...Problem 26E:
Use the square root property to find all real or imaginary solutions to each equation.
26.
Problem 35E:
Find the real or imaginary solutions by completing the square. See the strategy for completing the...Problem 37E:
Find the real or imaginary solutions by completing the square. See the strategy for completing the...Problem 39E:
Find the real or imaginary solutions by completing the square. See the strategy for completing the...Problem 43E:
Find the real or imaginary solutions by completing the square. See the strategy for completing the...Problem 45E:
Find the real or imaginary solutions to each equation by using the quadratic formula. x 2 + 3 x − 4...Problem 46E:
Find the real or imaginary solutions to each equation by using the quadratic formula. x 2 + 8 x + 12...Problem 47E:
Find the real or imaginary solutions to each equation by using the quadratic formula.
47.
Problem 48E:
Find the real or imaginary solutions to each equation by using the quadratic formula. 2 x 2 + 3 x −...Problem 50E:
Find the real or imaginary solutions to each equation by using the quadratic formula. 16 x 2 − 24 x...Problem 51E:
Find the real or imaginary solutions to each equation by using the quadratic formula. 2 x 2 − 3 = 0Problem 52E:
Find the real or imaginary solutions to each equation by using the quadratic formula. − 2 x 2 + 5 =...Problem 53E:
Find the real or imaginary solutions to each equation by using the quadratic formula.
53.
Problem 54E:
Find the real or imaginary solutions to each equation by using the quadratic formula. x 2 = 6 x − 13Problem 55E:
Find the real or imaginary solutions to each equation by using the quadratic formula. x 2 − 2 x + 4...Problem 58E:
Find the real or imaginary solutions to each equation by using the quadratic formula. 12 x − 5 = 9 x...Problem 59E:
Find the real or imaginary solutions to each equation by using the quadratic formula.
59.
Problem 71E:
Find the solutions to each equation by reading the accompanying graph. 6 x 2 + x − 2 = 0Problem 72E:
Find the solutions to each equation by reading the accompanying graph.
72. –2x2 – 2x + 12 = 0
Problem 73E:
Find the solutions to each equation by reading the accompanying graph. –0.5x2 + x + 7.5 = 0Problem 74E:
Find the solutions to each equation by reading the accompanying graph. 0.5x2 – 2.5x + 2 = 0Problem 81E:
Use the method of your choice to solve each equation. See the strategy for solving ax2 + bx + c = 0...Problem 83E:
Use the method of your choice to solve each equation. See the strategy for solving ax2 + bx + c = 0...Problem 87E:
Use the method of your choice to solve each equation. See the strategy for solving ax2 + bx + c =...Problem 93E:
Use the method of your choice to solve each equation. See the strategy for solving ax2 + bx + c = 0...Problem 94E:
Use the method of your choice to solve each equation. See the strategy for solving ax2 + bx + c = 0...Problem 104E:
Use the methods for solving quadratic equations to solve each formula for the indicated variable. 1...Problem 107E:
Find an exact solution to each problem. If the solution is irrational, then find an approximate...Problem 112E:
Find an exact solution to each problem. If the solution is irrational, then find an approximate...Problem 115E:
Find an exact solution to each problem. If the solution is irrational, then find an approximate...Problem 121E:
Find an exact solution to each problem. If the solution is irrational, then find an approximate...Problem 124E:
Find an exact solution to each problem. If the solution is irrational, then find an approximate...Problem 132E:
132. Use the linear regression feature of a graphing calculator to find the equation of the...Problem 133E:
133. As the Crow Flies In Perfect City the avenues run east and west, the streets run north and...Problem 134E:
134. Adjusting the Antifreeze A mechanic has a 20-quart radiator filled with pure antifreeze. She...Problem 1PQ:
1. Solve x2 = 2.
Problem 2PQ:
Solve x2 – 2x = 48 by factoring.Problem 3PQ:
3. Solve x2 – 4x = 1 by completing the square.
Problem 4PQ:
Solve 2x2 – 4x = 3 by the quadratic formula.Browse All Chapters of This Textbook
Chapter P - PrerequisitesChapter P.1 - Real Numbers And Their PropertiesChapter P.2 - Integral Exponents And Scientific NotationChapter P.3 - Rational Exponents And RadicalsChapter P.4 - PolynomialsChapter P.5 - Factoring PolynomialsChapter P.6 - Rational ExpressionsChapter P.7 - Complex NumbersChapter 1 - Equations, Inequalities, And ModelingChapter 1.1 - Linear, Rational, And Absolute Value Equations
Chapter 1.2 - Constructing Models To Solve ProblemsChapter 1.3 - Equations And Graphs In Two VariablesChapter 1.4 - Linear Equations In Two VariablesChapter 1.5 - Quadratic EquationsChapter 1.6 - Miscellaneous EquationsChapter 1.7 - Linear And Absolute Value InequalitiesChapter 2 - Functions And GraphsChapter 2.1 - FunctionsChapter 2.2 - Graphs Of Relations And FunctionsChapter 2.3 - Families Of Functions, Transformations, And SymmetryChapter 2.4 - Operations With FunctionsChapter 2.5 - Inverse FunctionsChapter 2.6 - Constructing Functions With VariationChapter 3 - Polynomial And Rational FunctionsChapter 3.1 - Quadratic Functions And InequalitiesChapter 3.2 - Zeros Of Polynomial FunctionsChapter 3.3 - The Theory Of EquationsChapter 3.4 - Graphs Of Polynomial FunctionsChapter 3.5 - Rational Functions And InequalitiesChapter 4 - Exponential And Logarithmic FunctionsChapter 4.1 - Exponential Functions And Their ApplicationsChapter 4.2 - Logarithmic Functions And Their ApplicationsChapter 4.3 - Rules Of LogarithmsChapter 4.4 - More Equations And ApplicationsChapter 5 - Systems Of Equations And InequalitiesChapter 5.1 - Systems Of Linear Equations In Two VariablesChapter 5.2 - Systems Of Linear Equations In Three VariablesChapter 5.3 - Nonlinear Systems Of EquationsChapter 5.4 - Partial FractionsChapter 5.5 - Inequalities And Systems Of Inequalities In Two VariablesChapter 5.6 - The Linear Programming ModelChapter 6 - Matrices And DeterminantsChapter 6.1 - Solving Linear Systems Using MatricesChapter 6.2 - Operations With MatricesChapter 6.3 - Multiplication Of MatricesChapter 6.4 - Inverses Of MatricesChapter 6.5 - Solution Of Linear Systems In Two Variables Using DeterminantsChapter 6.6 - Solution Of Linear Systems In Three Variables Using DeterminantsChapter 7 - The Conic SectionsChapter 7.1 - The ParabolaChapter 7.2 - The Ellipse And The CircleChapter 7.3 - The HyperbolaChapter 8 - Sequences, Series, And ProbabilityChapter 8.1 - Sequences And Arithmetic SequencesChapter 8.2 - Series And Arithmetic SeriesChapter 8.3 - Geometric Sequences And SeriesChapter 8.4 - Counting And PermutationsChapter 8.5 - Combinations, Labeling, And The Binomial TheoremChapter 8.6 - ProbabilityChapter 8.7 - Mathematical InductionChapter A - Scatter Diagrams And Curve Fitting
Book Details
With an emphasis on problem solving and critical thinking, Dugopolski’s College Algebra, Sixth Edition gives students the essential strategies to help them develop the comprehension and confidence they need to be successful in this course. Students will f
Sample Solutions for this Textbook
We offer sample solutions for EBK COLLEGE ALGEBRA homework problems. See examples below:
Chapter P, Problem 1REGiven: 3x−2=0 Calculation: Consider the equation, 3x−2=0 Add 2 to both the sides, 3x−2+2=0+23x=2...Chapter 2, Problem 1REChapter 3, Problem 1REChapter 4, Problem 1REChapter 5, Problem 1REGiven: The matrices A=[2−3−24],B=[3712]. Formula Used: Two matrices can only be subtracted if they...Chapter 7, Problem 1REChapter 8, Problem 1RE
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