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Transparency 8

Transparency 8. Click the mouse button or press the Space Bar to display the answers. Splash Screen. Example 8-4b. Objective. Use powers and exponents in expressions. Example 8-4b. Vocabulary. Base. The number that is multiplied (the factor) 3 5 Three is the base. Example 8-4b.

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Transparency 8

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  1. Transparency 8 Click the mouse button or press the Space Bar to display the answers.

  2. Splash Screen

  3. Example 8-4b Objective Use powers and exponents in expressions

  4. Example 8-4b Vocabulary Base The number that is multiplied (the factor) 35 Three is the base

  5. Example 8-4b Vocabulary Exponent Tells how many times the base is used as a factor 35 Five is the exponent

  6. Example 8-4b Vocabulary Power The number that is expressed using an exponent 35 Five is showing the “power of 5”

  7. Example 8-4b Review Vocabulary Squared When the exponent is two 32 Three squared

  8. Example 8-4b Vocabulary Cubed When the exponent is 3 33 Three cubed

  9. Lesson 8 Contents Example 1Write an Expression Using Powers Example 2Evaluate Powers Example 3Evaluate Powers Example 4Evaluate Powers

  10. Write using exponents. Example 8-1a Write the first letter p q 4 3 Count number of p’s listed This will be the exponent to the letter p Write the next letter not used Count number of q’s listed Answer: p4q3 This will be the exponent to the letter q 1/4

  11. Write using exponents. Example 8-1b Answer: x3y4 1/4

  12. Evaluate . Example 8-2a Write problem 95 Use calculator Put in base which is 9 [yx] 9 = 5 Push the [yx] key Put in exponent which is 5 Answer: 59,049 Push the = sign 2/4

  13. Evaluate . Example 8-2b Answer: 7,776 2/4

  14. Evaluate Example 8-3a Write problem The negative exponent means to reciprocate and change exponent to positive 3-7 Remember: Reciprocate means to put the numerator in the denominator and the numerator 1 37 Do not write as decimal Put 1 in the numerator and draw fraction bar Put the 37 in the denominator and remove the negative 3/4

  15. Evaluate Example 8-3a Bring down the 1 in numerator and fraction bar Find 37 3-7 1 37 Answer: 3/4

  16. Evaluate Example 8-3b Answer: 3/4

  17. ALGEBRA Evaluate if and Example 8-4a x3· y5 Write problem Replace x with 4 43· 25 Replace y with 2 64 · 32 Find 43 2,048 Find 25 Multiply Answer: 2,048 4/4

  18. ALGEBRA Evaluate if and ALGEBRA Evaluate Example 8-4b * Answer: 2,304 4/4

  19. End of Lesson 8 Assignment

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