Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
0. Review of Algebra
Exponents
2:09 minutes
Problem 21e
Textbook Question
Textbook QuestionDetermine whether each statement is true or false. |11| * |-6| = |-66|
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Absolute Value
The absolute value of a number is its distance from zero on the number line, regardless of direction. It is denoted by vertical bars, such as |x|. For example, |11| equals 11 and |-6| equals 6, as both represent their distances from zero.
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Multiplication of Absolute Values
When multiplying two numbers, the absolute value of the product is equal to the product of their absolute values. This means |a * b| = |a| * |b|. In the given statement, |11| * |-6| translates to 11 * 6, which equals 66.
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Properties of Equality
In mathematics, properties of equality allow us to manipulate equations and inequalities. If two expressions are equal, any operation performed on one side must also be performed on the other. In this case, we need to verify if 66 equals |-66|, which is true since the absolute value of -66 is also 66.
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