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Alina [70]
3 years ago
13

Which of the following statements is TRUE? C++ functions can return a value of type array if it is returned as a base address va

lue. C++ functions can return a value of type array. C++ functions can return a value of type array if the array is local to that function. C++ functions cannot return a value of type array.
Computers and Technology
1 answer:
lesantik [10]3 years ago
3 0

Answer:

The answer to this question is "C++ functions can't return array type value".

Explanation:

In C++ language the method is a collection of declarations executing a process together. It is a statement, that tells the compiler to return and accept parameters of a function. In C++, it includes many standardized functions, which can be called by the software, and other choices were wrong, which can be described as follows:

  • In c++ function can't return array type always.  
  • function is not address based.  
  • If array is local to function, but function will not return array value.
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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

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

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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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