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4 years ago

Please tell me if I'm doing it right?

Computers and Technology

1 answer:

Vesna [10]4 years ago

4 0

Answer:

Below is a possible implementation using D-flip-flops.

Explanation:

Creating a counter that only counts even numbers is easy, just add a dummy bit-0 that is always 0. Creating a counter with D-flip-flops is also quite straightforward. The clock should be connected to the clock of the least significant bit, and the !Q output of the D flip flop should be fed back to the D input. Also, !Q should be used as a clock for the next bit.

Now, letting the counter wrap around to zero at 10 is tricky because of switching hazards. I created an NAND gate that compares the outputs to be 101, and the clock to be 0. Only this way you can guarantee that the outputs are stable. Now the resulting signal has to be delayed for one clock pulse. This can be achieved with an additional flip flop. The Q output of that flip flop operates the async resets of the counter flipflops.

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

Alborosie

<em><u>Answer</u></em>

5 hours

<em><u>Explanation</u></em>

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

3 years ago

A person you respect who offers you advice and assistance is known as a(n) _____.

Archy [21]

This would be a mentor-D. They role is to mentor or guide you with advice or assistance. A role model is a similar answer in that they respect you, but they might not offer advice or assistance which makes it incorrect.

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3 years ago

Quick!! I'm TIMED!!!

agasfer [191]

Cloud suites are stored at a(n) option d. server on the Internet, rather than on your microcomputer.

<h3>What is a cloud at the Internet?</h3>

"The cloud" refers to servers which might be accessed over the Internet, and the software program and databases that run on the ones servers. Cloud servers are positioned in facts facilities all around the world.

A cloud suite is a cloud computing version that shops facts at the Internet via a cloud computing company who manages and operates facts garage as a service. It's brought on call for with just-in-time capability and costs, and gets rid of shopping for and handling your very own facts garage infrastructure.