1. Warm-up Decide whether the number is in scientific notation. If not, write the number correctly. Write in decimal form. Write in scientific notation.

2. Math II UNIT QUESTION: What methods can be used to find the inverse of a function? Standard: MM2A2, MM2A5 Today’s Question: How do exponent rules apply to operations with scientific notation? Standard: MM2A2.a

3. 4.1 Scientific Notation Multiplying and Dividing

4. Multiplying and Dividing To multiply, divide, or find powers of numbers in scientific notation, use the properties of exponents.

5. Use the properties of exponents. Example 1: Evaluate Multiply these together. Use the rules of exponents. Not scientific. We will move it to the left once, so we ADD one.

6. Use the properties of exponents. Example 2: Evaluate Divide these. Use the rules of exponents.

7. Use the properties of exponents. Example 3: Evaluate Share the exponent.

8. Use the properties of exponents. Example 4: Evaluate In 1994 the population of California was about 3.1 x 10 7. In that year about 5.6 x 10 10 local calls were made in California. Estimate the number of local calls made per person in California in 1994.

9. Homework Day 1 Page 111 #9-17

10. Homework/Class work Day 2 Text: page 110 #9-27 (odd) Workbook: p. 117 #25-32