Google began the mass digitization of bound volumes of books and as a result, it is getting widespread media attention. Google has had, and is still keeping up with its intention to digitize all the books across major USA libraries. Its intention is not to provide a reading environment, but rather create an online index to books in libraries and bookstores.

4 0

3 years ago

Which of the following is a primary disadvantage of using a GUI HTML editor to develop your Webpages?

lora16 [44]

Answer:

C (Most feasible option)

Explanation:

I am not sure but option C seems most probable, all other options do not seem to be true

7 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

3 years ago

What is the primary difference among a domain model, an analysis model, and a design model for the same project?

Aleks04 [339]

Answer:

The design model is the description of the model to be implemented, the analysis model is the model that links the design and the system or domain model while the domain model is the entire software implementation.

Explanation:

The domain model is the conceptual aspect of software engineering that comprises operational and data features. The analysis model is the schematic description of the system that links the design model to the system domain. The design model is also known as the object model as it shows an abstract representation of the implementation. It helps to test the quality of the software been developed.

8 0

3 years ago