Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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### Mathematical Expression

The image contains the following mathematical expression:

\[ 
0.4 - 0.021 
\]

Below this, there is a fraction under a square root:

\[ 
\sqrt{\frac{(0.021)(1 - 0.021)}{250}} 
\]

### Explanation

1. **Subtraction**: The top part of the image shows a simple subtraction:
   - \(0.4 - 0.021\)

2. **Square Root and Fraction**: Below this, inside a square root, there is a fraction:
   - **Numerator**: 
     \((0.021)(1 - 0.021)\) involves multiplying 0.021 by the result of subtracting 0.021 from 1.
   - **Denominator**: 
     The denominator is 250.

### Educational Context

- **Usage**: This expression could relate to statistical calculations, such as standard error or confidence intervals, where such computations are common.
- **Concepts**: Understanding basic operations and their applications in statistics, such as working with proportions or probabilities, can be a useful skill in interpreting data.
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Transcribed Image Text:### Mathematical Expression The image contains the following mathematical expression: \[ 0.4 - 0.021 \] Below this, there is a fraction under a square root: \[ \sqrt{\frac{(0.021)(1 - 0.021)}{250}} \] ### Explanation 1. **Subtraction**: The top part of the image shows a simple subtraction: - \(0.4 - 0.021\) 2. **Square Root and Fraction**: Below this, inside a square root, there is a fraction: - **Numerator**: \((0.021)(1 - 0.021)\) involves multiplying 0.021 by the result of subtracting 0.021 from 1. - **Denominator**: The denominator is 250. ### Educational Context - **Usage**: This expression could relate to statistical calculations, such as standard error or confidence intervals, where such computations are common. - **Concepts**: Understanding basic operations and their applications in statistics, such as working with proportions or probabilities, can be a useful skill in interpreting data.
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