Final answer:
Hexadecimal numbers are used in web design to specify colors, in computing to represent binary code, and in networking for MAC addresses.
Step-by-step explanation:
The correct answer to the student’s question about the uses for hexadecimal numbers includes examples for each application:
- Web design: Hexadecimals are used to specify colors on web pages. For example, the color white is represented as #FFFFFF.
- Binary code simplification: In computing, hexadecimal can represent binary code in a more human-readable format. The binary sequence 10101010 could be represented as the hexadecimal AA.
- Addressing and identifiers: In computer networking, MAC addresses for networking hardware are expressed in hexadecimal. An example would be a MAC address like 00:1A:2B:3C:4D:5E.
Representation of binary data: Hexadecimal is commonly used to represent binary data in a more compact and readable format. For example, the binary number 10101011 can be represented as AB in hexadecimal.
Memory addressing: Hexadecimal is often used to represent memory addresses in computer systems. It provides a more concise way to express a large range of addresses. For instance, the memory address 4096 can be represented as 0x1000 in hexadecimal.
Color representation: Hexadecimal is commonly used to represent colors in web design and graphics. Each component of a color (red, green, and blue) is represented by a two-digit hexadecimal number. For example, the color white is represented as #FFFFFF in hexadecimal.