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## PowerPoint Slideshow about 'Rational Exponents' - Gideon

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Lesson 7 Contents

Example 1Radical Form

Example 2Exponential Form

Example 3Evaluate Expressions with Rational Exponents

Example 4Rational Exponent with Numerator Other Than 1

Example 5Simplify Expressions with Rational Exponents

Example 6Simplify Radical Expressions

Weight LiftingThe formula can be used toestimatethe maximum total mass that a weight lifter of mass B kilograms can lift in two lifts, the snatch and theclean and jerk, combined.

Original formula

Use a calculator.

Example 7-4aAccording to theformula, what is the maximum that U.S. WeightlifterOscar Chaplin III can lift if he weighs 77 kilograms?

Answer:The formula predicts that he can lift at most 372 kg.

Weight LiftingThe formula can be used toestimatethe maximum total mass that a weight lifter of mass B kilograms can lift in two lifts, the snatch and theclean and jerk, combined.Example 7-4b

Oscar Chaplin’s total in the 2000 Olympics was 355 kg. Compare this to the value predicted by the formula.

Answer:The formula prediction is somewhat higher than his actual total.

Weight LiftingUse the formula where M is the maximum total mass that a weight lifter of mass B kilograms canlift.

a. According to the formula, what is the maximum that a weight lifter can lift if he weighs 80 kilograms?

b. If he actually lifted 379 kg, compare this to the value predicted by the formula.

Example 7-4cAnswer:380 kg

Answer:The formula prediction is slightly higher than his actual total.

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