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3 years ago

What is a single instruction that inverts bits 5 and 6 in bl without changing any other bits?

1 answer:

7 0

You want to XOR the register contents with the value 0x60 (a hex word with bits 5 and 6 set).
Not sure how to write that in x86 assembler, is it:

xor bl, 0x60

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Ladders are a fundamental piece of equipment on construction sites and employers are expected to ensure that workers follow safe

Ede4ka [16]

That statement is true.

Ladders commonly used to do a couple of construction activities in a higher region of a building or area.
If this equipment is not used properly, it could potentially caused fatal accidents for the people on the site

6 0

3 years ago

Two machines can finish a job in StartFraction 20 Over 9 EndFraction hours. Working alone, one machine would take one hour long

Alborosie

Answer

5 hours

Explanation

The two working together can finish a job in

$\frac{20}{9} \: hours$

Also, working alone, one machine would take one hour longer than the other to complete the same job.

Let the slower machine working alone take x hours. Then the faster machine takes x-1 hours to complete the same task working alone.

Their combined rate in terms of x is

$\frac{1}{x} + \frac{1}{x - 1}$

This should be equal to 20/9 hours.

$\frac{1}{x} + \frac{1}{x - 1} = \frac{9}{20}$

Multiply through by;

$20x(x - 1) \times \frac{1}{x} +20x(x - 1) \times \frac{1}{x - 1} = 20x(x - 1) \times \frac{9}{0}$

$20(x - 1) +20x = 9x(x - 1)$

$20x - 20+20x = 9{x}^{2} - 9x$

$9{x}^{2} - 9x - 20x - 20x + 20= 0$

$9{x}^{2} - 49x + 20= 0$

Factor to get:

$(9x - 4)(x - 5) = 0$

$x = \frac{4}{9} \: or \: x = 5$

It is not feasible for the slower machine to complete the work alone in 4/9 hours if the two will finish in 20/9 hours.

Therefore the slower finish in 5 hours.

8 0

2 years ago

Which is the last step in conducting a URL search?

dimulka [17.4K]

The user's browser renders the html code as a visual web page

3 0

3 years ago

You want to connect the LAN port on a router to the uplink port on a switch. The switch does not support auto-MDI. Which type of

kirza4 [7]

Answer: Crossover

Explanation:

Based on the information given in the question, the type of cable that should be used is the crossover cable.

Crossover cable is used for a direct connection of computing devices. A crossover cable is typically used for the connection of computing devices that are of identical types.

Since the LAN port on a router is to be connected to the uplink port on a switch and the switch does not support auto-MDI, the crossover cable can be used.

3 0

2 years ago

Ally typed a business letters she most likely used a

Zarrin [17]

Answer:

Ally typed a business letters she most likely used a Word Processor.

Explanation:

Word processors are the tools that are used to process the text in terms of formatting, printing and editing the text document. These programs or software are used to write the text document with ease.

Microsoft word and word perfect are the examples of the word processors.

We can write the text on note pad as well, but we cannot apply different fonts style, size and formatting techniques on that application. Word processors provide a lot of fonts styles and formatting options to make the document appealing.

6 0

3 years ago