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Ganezh [65]
2 years ago
14

Which statement opens a text file so that you can retrieve the information it contains?

Computers and Technology
1 answer:
vesna_86 [32]2 years ago
3 0

Answer:

Answered below

Explanation:

aFile = open("books.txt", "r")

This code uses the function open() which takes two parameters. The first parameter is the file name while the second parameter is the mode in which you are accessing the file.

The "r" mode opens the file in a reading state. That is, you can only read from the file. This code completes the reading process

aFile.read( )

The "w" mode opens the file so you can write to it and make changes.

The "a" mode opens the file so you can add contents to it.

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

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

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<u><em>speed </em></u>

<u><em>( </em></u>

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<u><em>s </em></u>

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<u><em>1 </em></u>

<u><em>) </em></u>

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<u><em>frequency(Hz) </em></u>

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<u><em>wavelength (m) </em></u>

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

<u><em>The frequency is  </em></u>

<u><em>f </em></u>

<u><em>= </em></u>

<u><em>100 </em></u>

<u><em>H </em></u>

<u><em>z </em></u>

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<u><em>The wavelength is  </em></u>

<u><em>λ </em></u>

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<u><em>0.3 </em></u>

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6 0
3 years ago
Students who finish their homework after school are meeting a. intrapersonal and short-term goals b. normative and short-term go
3241004551 [841]

Answer: a. intrapersonal and short-term goals

Explanation:

Intrapersonal goals are those that we set for ourselves in our minds to accomplish. The students that are finishing their homework after school most probably set that goal in their minds and so meeting it would mean meeting their intrapersonal goals.

Homework is not a long term project but rather a short one that is usually meant to be completed within days. Completing it is therefore a short term goal.

The students who finish their homework after school are therefore accomplishing both their intrapersonal and short-term goals.

6 0
3 years ago
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Explain what mistake Miranda made in the following scenario. Situation: Miranda suspects that there may be a problem with the ha
Dennis_Churaev [7]

Answer: Answer below.

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I'm not fully sure myself, so don't agree with me fully.

I believe what she may have done wrong is tell the technician about a "program." A program doesn't have to do anything with physical hardware.

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3 years ago
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Problem 2 Write a method that (a) returns an int[] , (b) takes in two sorted arrays (in descending order) and (c) returns an int
Galina-37 [17]

Answer:

Following are the Program in the Java Programming Language.

//define class

public class Main

{

//define function to merge and sort array

public static int[] sort_Array(int[] a, int[] b)

{

//set integer variable and initialize values

int x = 0, y = 0, k = 0, num = 0;

int n = a.length;

int n1 = b.length;

//set integer type array

int[] ar = new int[n+n1];

//set while loop

while (x<n && y <n1)

{

num++;

num++;

//set if conditional statement

if (a[x] > b[y])

ar[k++] = a[x++];

else

ar[k++] = b[y++];

num++;

}

//set the while loop

while (x < n)

{

num++;

ar[k++] = a[x++];

}

//set the while loop

while (y < n1)

{

num++;

ar[k++] = b[y++];

}

//print the total compares done

System.out.println("Number of compares done: " + n);

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return ar;

}

//define main method

public static void main(String[] args)

{

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int[] b = new int[]{13, 12, 11, 7, 1};

int[] ar;

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ar = sort_Array(a, b);

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{

System.out.print(ar[x] + " ");

}

}

}

<u>Output</u>:

Number of compares done: 5

The resultant array is:

18 16 15 13 12 11 7 6 2 1

Explanation:

Here, we define a class "Main" inside the class, define a function "sort_Array()"and pass two integer type array argument "a" and "b".

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  • Then, print the number of compares and return the value of the variable "ar".

Finally, define the main method inside it, we set two integer type array variable and initialize elements in them then, set the for loop to print the sorted elements of the array.

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Answer:

C++ With Examples

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