Mills Summers
07/03/2023 · High School
4. Convert each of the following numbers to their respective number systems equivalent: \( \begin{array}{ll}\text { a) } \mathrm{A}_{2} \mathrm{DFE}_{16} \text { to binary. } \\ \text { b) } 11110000_{2} \text { to octal. } & \text { ( } 2 \text { Marks) } \\ \text { c) } 65_{10} \text { to hexadecimal. } & \text { (2 Marks) } \\ \text { d) } 673 \mathrm{~s} \text { to decimal. } & \text { (2 Marks) }\end{array} \)
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Step-by-step Solution
Let's convert each of the given numbers to their respective number systems.
### a) Convert \( \mathrm{DFE}_{16} \) to binary.
To convert from hexadecimal (base 16) to binary (base 2), we convert each hexadecimal digit to its 4-bit binary equivalent:
- \( D_{16} = 13_{10} = 1101_{2} \)
- \( F_{16} = 15_{10} = 1111_{2} \)
- \( E_{16} = 14_{10} = 1110_{2} \)
Now, we combine these binary values:
\[
\mathrm{DFE}_{16} = 1101 \, 1111 \, 1110_{2}
\]
So, \( \mathrm{A}_{2} \mathrm{DFE}_{16} \) in binary is:
\[
\mathrm{DFE}_{16} = 110111111110_{2}
\]
### b) Convert \( 11110000_{2} \) to octal.
To convert from binary (base 2) to octal (base 8), we group the binary digits into sets of three, starting from the right:
\[
11110000_{2} = 11 \, 110 \, 000
\]
We can add leading zeros to make a complete group of three:
\[
001 \, 111 \, 100 \, 000
\]
Now, we convert each group to its octal equivalent:
- \( 000_{2} = 0_{8} \)
- \( 100_{2} = 4_{8} \)
- \( 111_{2} = 7_{8} \)
- \( 001_{2} = 1_{8} \)
Combining these gives us:
\[
11110000_{2} = 1740_{8}
\]
### c) Convert \( 65_{10} \) to hexadecimal.
To convert from decimal (base 10) to hexadecimal (base 16), we divide the number by 16 and keep track of the remainders:
1. \( 65 \div 16 = 4 \) remainder \( 1 \)
2. \( 4 \div 16 = 0 \) remainder \( 4 \)
Reading the remainders from bottom to top, we get:
\[
65_{10} = 41_{16}
\]
### d) Convert \( 673_{s} \) to decimal.
To convert from a base \( s \) to decimal, we need to know the base \( s \). Assuming \( s \) is base 10 (as it is not specified), we can directly state:
\[
673_{10} = 673_{10}
\]
If \( s \) is a different base, please specify the base for accurate conversion.
### Summary of Results:
- a) \( \mathrm{DFE}_{16} = 110111111110_{2} \)
- b) \( 11110000_{2} = 1740_{8} \)
- c) \( 65_{10} = 41_{16} \)
- d) \( 673_{s} = 673_{10} \) (assuming \( s = 10 \))
Quick Answer
a) \( \mathrm{DFE}_{16} = 110111111110_{2} \)
b) \( 11110000_{2} = 1740_{8} \)
c) \( 65_{10} = 41_{16} \)
d) \( 673_{s} = 673_{10} \)
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