Examples 1 and 2 Express each number in standard form.- 3.754 × 105 2. 8.34 × 106
- 1.5 × 10 –^4 4. 2.68 × 10 –^3
Examples 3 and 4 Express each number in scientific notation.
55 4,510,000 6. 0.00673- 0.000092 8. 11,620,000
- PHYSICAL SCIENCE Light travels 300,000 kilometers per second. Write this
number in scientific notation.
Example 5 10. TECHNOLOGY The distance between tracks on a Disc Distance (mm)
CD 1.6 × 10 -^3
DVD 7.4 × 10 -^4CD and DVD are shown in the table. Which disc
has the greater distance between tracks?Replace each with <, >, or = to make a true sentence.- 2.3 × 105 1.7 × 105 12. 0.012 1.4 × 10 –^1
= Step-by-Step Solutions begin on page R1.
Extra Practice begins on page EP2.
Examples 1 and 2 Express each number in standard form.- 6.1 × 104 14. 5.72 × 106 15. 3.3 × 10 –^1 16. 5.68 × 10 –^3
- 9.014 × 10 –^2 18. 1.399 × 105 19. 2.505 × 103 20. 7.4 × 10 –^5
- SPIDERS The diameter of a spider’s thread is 1 × 10 –^3 inch. Write this
number in standard form. - DINOSAURS The Giganotosaurus dinosaur weighed about 1.4 × 104
pounds. Write this number in standard form.
Examples 3 and 4 Express each number in scientific notation.- 499,000 24. 2,000,000 25. 0.006 26. 0.0125
- 50,000,000 28. 39,560 29. 0.000078 30. 0.000425
- CHESS The number of possible ways that a player can play the first four
moves in a chess game is 3 billion. Write this number in scientific
notation. - SCIENCE A particular parasite is approximately 0.025 inch long. Write this
number in scientific notation.
Example 5 33. SPORTS Use the table. Determine which Category Sales ($)
Camping 1.547 × 109
Golf 3.243 × 109
Tennis 3.73 × 108category in each pair had a greater amount
of sales.
a. golf or tennis
b. camping or golfLesson 4C Monomials 187176_189_C3L4_895130.indd 187 12/31/09 12:50 PM