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3 years ago

Items in the __________ area of a class are accessible to all entities that can "see" the object(s) of that class type

1 answer:

8 0

Classes have three areas, (public, private and protected)

"public area" of a class is accessible to all entities that can "see" the object(s) of that class type (accessible in and out)

"private area" of a class is accessible to only within that class, i.e. cannot access them from outside the class (accessible in)

"protected area" of a class is accessible to all entities that can "see" the object(s) of that class type (accessible in and "out with some conditions")

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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

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.

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3 years ago

A pointing device used mainly for computer games is known as

kolbaska11 [484]

Answer: Joystick is the only one that makes sense, a stylus and digitizer are both used on drawing tablets, not computer games.

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2 years ago

If you are writing an algorithm and you aren’t confident that you understand the problem, what can you do?

Zigmanuir [339]

Answer:

divide it into smaller pieces

Explanation:

Usually, the main reason a programmer does not understand a problem fully is that there is too much information. The best way to try and fully understand a problem is to divide it into smaller pieces. Start off by answering the question what is the expected output for an input. Then divide each individual issue within the problem. This will allow you as a programmer/developer to create an individual solution for each individual issue within the problem and then test to make sure that the input gives the correct output.

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3 years ago

Which strategy should individuals working in a diverse workplace adopt?

yawa3891 [41]

B.Interact more with people from different backgrounds. this is correct because that would help people get to know each other better.

Hope this helps:)

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3 years ago

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Explanation:

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