3 years ago

In modern computer systems, a byte consists of

Computers and Technology

1 answer:

Cerrena [4.2K]3 years ago

8 0

8 smaller units, called bits :)

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The access code for a? car's security system consists of fivefive digits. the first digit cannot be zerozero and the last digit

jekas [21]

The code of five digits is of the form:

A B C D F

Where A (the first digit) may be any of 9 digits (because 0 is excluded)

B, C, and D, may be each any of 10 digits (0 - 9)

F (the last digit) may be 0, 2, 4, 6 or 8, i.e. 5 different digits.

So the number of different available codes is:

9 * 10 * 10 * 10 * 5 = 45,000.

Answer: 45,000

4 0

3 years ago

Use ONE SQL statement to show the total number of actual hours for each customer. In the output, show customer id and the total

valkas [14]

Explanation:

SELECT

distributor_id,

COUNT(*) AS TOTAL,

COUNT(IF(level='exec',1,null)),

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