Write the decimal number 475 (base 10) in expanded form

Write the decimal number 475 (base 10) in expanded form

(4 * 102) + (7 * 101) + (5 * 100)

(4 * 102) + (7 * 101)

(4 * 102) + (7 * 101) + 0

(4 * 103) + (7 * 102) + (5 * 100)

Question 2. Question :

Simplify the expansion to give the decimal (base 10) number: (6 * 102) + (9 * 101) + (9 * 100)

Student Answer: 6099

699

6909

6990

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Question 3. Question :

Convert from decimal form (base 10) to binary form (base 2): 15 base 10

: 1101 base 2

1011 base 2

1111 base 2

1001 base 2

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Question 4. Question :

Convert from binary form (base 2) to decimal form (base 10): 01101001

: 201

105

69

None of the above

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Question 5. Question :

Convert from hexadecimal form (base 16) to binary (base 2): 3F

: 101111

111111

110000

None of the above.

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Question 6. Question :

Convert from hexadecimal form (base 16) to decimal form (base 10): A1

160

11

17

None of the above.

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Question 7. Question :

Convert from hexadecimal form (base 16) to binary form (base 2): 81

10000000

10000001

01000001

None of the above.

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Question 8. Question :

Determine which binary number this circuit arrangement represents:

10101101

1001000

10110111

None of the above.

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Question 9. Question :

Convert the following word to ASCII character codes (in decimal): LAMP

76 97 109 70

4C 41 4D 50

76 65 77 80

None of the above.

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Question 10.Convert the following word to ASCII binary code: dog

01100100 01001111 01000111

01100100 01101111 01100111

01010101 01010101 10101010

01100100 01101111 01100111

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Question 11. Question :

Convert the following binary numbers to characters using the ASCII character codes:

01100010 01100101 01101100 01101100

: bell

ball

kill

hind

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Question 12. Question :

Which of the following is NOT a valid number in the hexadecimal numeration system?

: 9B

300

EAT

They are all valid.

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Question 13. Question :

Approximately how many bytes would you need to store 25 pages of text?

: 25B

25MB

25KB

25GB

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Question 14. Question :

What is the ASCII character code (in decimal) for “#”?

: 35

2A

42

None of the above.

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Question 15. Question :

What’s the next number in hexadecimal after 29?

: 30

3A

2A

None of the above.

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