1. 12.3 Multiplying Rational Expressions 33 22 11 Definitions Formulas & Examples Practice Problems

2. Multiplying Rational Expressions  Steps  Factor the denominators  Factor the numerators  Combine numerators  Combine denominators  Simplify 2

3. Monomial Expressions Find 3

4. More Monomial Expressions Find 4

5. Polynomial Expressions Find 5

6. More Polynomial Expressions Find 6

7. Dimensional Analysis 7  Definition  Multiplying fractions that involve units of measure  Frequently used in Chemistry, Physics, Construction, Physical Science, Biology, etc.

8. Dimensional Analysis 8 In the 2000 summer Olympics in Sydney, Austrailia, Maurice Green of the U.S. won the gold medal for the 100-meter sprint. His winning time was 9.87 seconds. What was his speed in kilometers per hour rounded to the nearest 100 th ?

9. Practice Problems  Page 657 Problems 12-32 Even due today Odd due next class 9