Customary Unit Conversions | MathHelp.com - By MathHelp.com
| 00:0-1 | In this example it's important to understand that L . | |
| 00:03 | B . Stands for pounds and O . Z . | |
| 00:06 | Stands for ounces . So we're asked to convert £3 | |
| 00:10 | into ounces which means we use the conversion factor for | |
| 00:13 | pounds and ounces which is 16 ounces equals £1 . | |
| 00:23 | Next notice that we're converting from a larger unit pounds | |
| 00:27 | to a smaller unit ounces . When converting from a | |
| 00:40 | larger unit to a smaller unit . We multiply yeah | |
| 00:47 | . Mhm . So we multiply three times 16 Which | |
| 00:57 | gives us 48 . So £3 equals 48 oz . | |
| 01:03 | Which makes sense . It's important to remember the following | |
| 01:07 | rule when converting from a larger unit to a smaller | |
| 01:11 | unit , we multiply . |
DESCRIPTION:
This lesson covers complex numbers. Students learn that a complex number is the sum or difference of a real number and an imaginary number and can be written in a + bi form. For example, 1 + 2i and -- 5 - i root 7 are complex numbers. Students then learn to add, subtract, multiply, and divide complex numbers that do not contain radicals, such as (5 + 3i) / (6 - 2i). To divide (5 + 3i) / (6 - 2i), the first step is to multiply both the numerator and denominator of the fraction by the conjugate of the denominator, which is (6 + 2i), then FOIL in both the numerator and denominator, and combine like terms.
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