1 / 30

Bellwork

Bellwork. Pick up and Do worksheet 8.2 (1-24). Exponent Rules. 1.) a m+n 2.) a m • n = 3.) a m • b m 4.) 1/a n 5.) 1. 1.) a m • a n = 2.) (a m ) n = 3.) (a • b) m 4.) a -n = 5.) x 0 =. Exponent Rules. 6.) a m-n 7.) a n b n. 6.) a m a n 7.) a n b.

amixon
Télécharger la présentation

Bellwork

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Bellwork • Pick up and Do worksheet 8.2 (1-24)

  2. Exponent Rules • 1.) am+n • 2.) am•n = • 3.) am • bm • 4.) 1/an • 5.) 1 • 1.) am • an = • 2.) (am)n = • 3.) (a • b)m • 4.) a-n = • 5.) x0 =

  3. Exponent Rules • 6.) am-n • 7.) an bn • 6.) am an • 7.) a n b

  4. Worksheet 8.1 • On a sheet of paper, number from 1-18. • Take the Quiz on page 425 (1-18) • You can use your rules (1-7) sheet.

  5. Bellwork • Do worksheet 8.3 (1-20 only) • It is on the back of worksheet 8.2

  6. Bellwork Simplify • 1.) 6x-1y2 7xy-3 2y3 x2 • 2.) 8x2y3 -2x-2y -4x-1y-3 -x • 3.) -5x2y3 (2xy)-1 x3y2 -6x-2y2

  7. Bellwork Simplify • 1.) 6x-1y2 7xy-3 2y3 x2 • 42y-1 2x2y3 • 21 x2y4

  8. Bellwork Simplify • 2.) 8x2y3 -2x-2y -4x-1y-3 -x • -16y4 4y-3 • -4y7

  9. Bellwork Simplify • 3.) -5x2y3 (2xy)-1 x2y3 -6x-2y2 • -5 1 1 (2xy)(-6x-2y2) • -5 -12x-1y3 = -5x-12y3

  10. Quiz • Take the Quiz over 8.1 - 8.3

  11. Today’s Objective • To be able to express a very large number or very small number in scientific notation.

  12. Scientific Notation • What does the sun weigh? • 4,400,000,000,000,000,000,000,000,000,000 lbs. • How much hydrogen does the sun burn each second? • 600,000,000 metric tons

  13. Scientific Notation • How much longer will the sun burn? • 6,000,000,000 years.

  14. Scientific Notation • Let’s look at these large Numbers • 4,400,000,000,000,000,000,000,000,000,000 lbs. • 600,000,000 metric tons • 6,000,000,000 years • Each of these numbers can be written in a different form called Scientific Notation

  15. Scientific Notation • Scientific Notation is made up of 2 parts. • 1st Part = a number between 1 and 10 • 2nd Part = x 10 to some power • If it doesn’t have both parts, it is NOT Scientific Notation.

  16. Scientific Notation • Let’s change these large Numbers to Scientific Notation….. • 4,400,000,000,000,000,000,000,000,000,000 lbs. • 4.4 x 1030 lbs. • Place the decimal pt. after the first # and then count to the end.

  17. Scientific Notation • 600,000,000 metric tons • 6.0 x 10? • 6.0 x 108 metric tons • 6,000,000,000 years • 6.0 x 109 years

  18. Change to Scientific Notation • 1570 • Place the decimal just after the first number. 1.570 • Then count the # of places 1570 = 1.57 x 103

  19. Change to Scientific Notation • 832,000,000 • Place the decimal just after the first number. • Then count the # of places • 832,000,000 =8.32 x 108

  20. Change to Scientific Notation • 2450 = 2.45 x 103 • 765,000,000 = 7.65 x 108 • 0.000722 = 7.22 x 10-4 Notice that if the decimal moves right the exponent is negative and if it moves left, the decimal is positive.

  21. Change to Scientific Notation • 0.000722 • Place the decimal just after the first number. • Then count the # of places. • 000722 = 7.22 x 10-4

  22. Change to Standard Notation • Now let’s go backwards and change from Scientific Notation to Standard Notation.

  23. Change to Standard Notation • 4.53 x 105 • Move the decimal pt. 5 places to the right. • 453000 = 453,000

  24. Scientific Notation • (5 x 103)(4 x 105) • 5 x 4 = 20 • 103 x 105 = 108 • 20 x 108 Now convert to Scientific Notation 2.0 x 109

  25. Try this one • 820,000,000 8.2 Place the point after the 1st # Count to the end 8.2 x 108

  26. Try this one • (6 x 102)(3 x 107) • 6 x 3 = 18 • 102 x 107 = 109 • 18 x 109 Now convert to Scientific Notation 1.8 x 1010

  27. Try this one • (5 x 103)2 = • (5 x 103) (5 x 103) • 5 x 5 = 25 • 103 x 103 = 106 • 25 x 106 = 2.5 x 107

  28. Closure • 1.) What are the 2 parts that make up Scientific Notation? • 2.) How do you determine if the exponent is positive or negative? • 3.) When do you use Scientific Notation?

  29. Classwork • Do worksheet 8.4 • Homework page 422 (5-26) • Quiz over 8.1-8.3 Friday

  30. List of Clicks • Start, P:\ drive, Algebra, Multichc, Smiley Face, Open, Sec8-4

More Related