Beginning Algebra, 11th Edition

8.7 Using Rational Numbers as Exponents Assume that mand nare integers, and am/n 1 am/n 1 a 02 am/n 2 namA 2 naB m a1/n 2 ...

Simplify each expression. Assume that all variables represent nonnegative real numbers. 8. ...

8.7 Simplify each expression. Assume that all variables represent positive real numbers. 28494 x1/4#x5/4 x3/ ...

Simplify where possible. Solve each problem. 15.Find the measure of the unknown leg of thi ...

CHAPTERS 1–8 Cumulative Review Exercises 551 Simplify each expression. Solve each equation or inequality. ...

17.Subtract from 18.Divide Factor each polynomial completely. Perform each indicated operation. Express answers in l ...

Recreational fishing is big business in the United States. In 2006, nearly 40 million anglers generated over $45.3 billion in re ...

OBJECTIVE 2 Solve equations of the form where In Example 1(b),we might also have solved by noticing that xmust be a num- ber who ...

Solving Quadratic Equations of the Form Solve each equation. Write radicals in simplified form. (a) By the square root property, ...

CHECKSubstitute each solution in the original equation. Let Let Subtract. Subtract. ✓ True ✓ True The solution set is (b) or Squ ...

Approximate the length of a bass weighing 2.20 lb and having girth 10 in. (Source: Sacramento Bee.) Given formula Multiply by 12 ...

35.Concept Check When a student was asked to solve , she wrote as her answer. Her t ...

63.The area of a circle with radius ris given by the formula If a circle has area 81 , what is its radius? 64.The surface area S ...

560 CHAPTER 9 Quadratic Equations OBJECTIVES OBJECTIVE 1 Solve quadratic equations by completing the square when the coefficient ...

Therefore, if we add 9 to each side of the equation will have a perfect square trinomial on the left side, as needed. Add 9. 1 x ...

OBJECTIVE 2 Solve quadratic equations by completing the square when the coefficient of the second-degree term is not 1.If a quad ...

Step 4 Solve the equation by using the square root property. or Square root property or Take square roots. or Subtract 2. or CHE ...

Step 4 Solve by using the square root property. or Square root property or Add or Simplify. or Lowest terms A check confirms tha ...

NOTE The solutions given in Example 7are exact. In applications, dec- imal solutions are more appropriate. Using the square root ...

Solve each equation by completing the square. See Examples 2 and 3. Solve each equation by completin ...