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timurjin [86]
2 years ago
10

2) A ________ uses electronic memory and has no motors or moving parts. A) mechanical hard drive B) solid-state drive C) Blu-ray

disc D) digital video disc
Computers and Technology
1 answer:
grin007 [14]2 years ago
7 0

Answer:

A.mechanical hard

Explanation:

brainliest me and follow ty

You might be interested in
Write a program that converts a number entered in Roman numerals to decimal. your program should consist of a class, say, Roman.
arlik [135]

Answer:

The code is given below in Java with appropriate comments

Explanation:

import java.util.*;

public class RomantoDecimal {

    public static void main(String[] args)

    {

         Scanner SC = new Scanner(System.in);

         RomantoDecimal r = new RomantoDecimal();

         System.out.println("Enter a Roman number :");

         // INPUT A ROMAN NUMBER

         String rNum = SC.next();

         // CALL convertToDecimal FOR CONVERSION OF ROMAN TO DECIMAL

         r.convertToDecimal(rNum);

    }

    // M=1000, D=500, C=100, L=50, X=10, V=5, I=1

    public void convertToDecimal(String roamNo)

    {

         int number = 0;

         // TEACK EACH DIGIT IN THE GIVEN NUMBER IN REVERSE ORDER

         for (int i = roamNo.length() - 1; i >= 0; i--)

         {

             // FIND OUT WHETHER IT IS 'M' OR NOT

             if (roamNo.charAt(i) == 'M')

             {

                  if (i != 0)

                  { // CHECK WHETHER THERE IS C BEFORE M

                       if (roamNo.charAt(i - 1) == 'C')

                       {

                            number = number + 900;

                            i--;

                            continue;

                       }

                  }

                  number = number + 1000;

             }

             // FIND OUT WHETHER IT IS 'D' OR NOT

             else if (roamNo.charAt(i) == 'D')

             {

                  if (i != 0)

                  {

                  // CHECK WHETHER THERE IS C BEFORE D

                       if (roamNo.charAt(i - 1) == 'C')

                       {

                            number = number + 400;

                            i--;

                            continue;

                       }

                 }

                  number = number + 500;

             }

            // FIND OUT WHETHER IT IS 'C' OR NOT

             else if (roamNo.charAt(i) == 'C')

             {

                  if (i != 0)

                  {

                       if (roamNo.charAt(i - 1) == 'X')

                       {

                            number = number + 90;

                            i--;

                            continue;

                      }

                  }

                  number = number + 100;

             }

             else if (roamNo.charAt(i) == 'L')

             {

                  if (i != 0)

                  {

                       if (roamNo.charAt(i) == 'X')

                       {

                            number = number + 40;

                            i--;

                            continue;

                       }

                  }

                  number = number + 50;

             }

             // FIND OUT WHETHER IT IS 'X' OR NOT

             else if (roamNo.charAt(i) == 'X')

             {

                  if (i != 0)

                  {

                       if (roamNo.charAt(i - 1) == 'I')

                       {

                            number = number + 9;

                            i--;

                            continue;

                       }

                  }

                  number = number + 10;

             }

             // FIND OUT WHETHER IT IS 'V' OR NOT

             else if (roamNo.charAt(i) == 'V')

             {

                  if (i != 0)

                  {

                       if (roamNo.charAt(i - 1) == 'I')

                       {

                            number = number + 4;

                            i--;

                            continue;

                       }

                  }

                  number = number + 5;

             }

            else // FIND OUT WHETHER IT IS 'I' OR NOT

             {

                  number = number + 1;

             }

         }// end for loop

         System.out.println("Roman number: " + roamNo + "\nIts Decimal Equivalent: " + number);

    }

}

3 0
3 years ago
The file includes 4993 tweets including the keyword 'election'. Each tweet is represented in a separate line. Write a program to
Likurg_2 [28]

Answer:

import re

with open("../../Downloads/Tweets.txt","r", encoding="utf-8") as tweets:

   myfile = tweets.readlines()

   for item in myfile:

       item = item.rstrip()

       mylist = re.findall("^RT (.*) ", item)

       if len(mylist) !=0:

           for line in mylist:

               if line.count("#") >=1:

                   ln = line.split("#")

                   dm = ln[1]

                   print(f"#{dm}")

Explanation:

The python source code filters the document file "Tweets" to return all tweets with a hashtag flag, discarding the rest.

7 0
3 years ago
D. Convert binary fraction .10112 to Decimal fraction.
Vaselesa [24]
To convert binary fraction to decimal fraction, we first write the given

.1011 (base 2)

The process of conversion is to break down to its decimal constituent,

.1011 (base 2) = (1*2^-1)+(0*2^-2)+(1*2^-3)+(1*2^-4)
.1011 (base 2) = 0.5 + 0 + 0.125 + 0.0625
.1011 (base 2) = 0.6875 (base 10)

<em>ANSWER: 0.6875 (base 10)</em>
6 0
3 years ago
When a customer makes a request or complaint, the goal of customer service is to
Brrunno [24]

Solution:

When a customer makes a request or complaint, the goal of customer service is to show the customer how to remain calm and courteous.

Because the work of the costumer care is  to serve as customers' first point of contact for complaints, questions, requests, feedback, or any other needs; these professionals are essentially charged with managing relationships between clients and the company.

Thus the required answer is D

7 0
3 years ago
If you have long column labels with columns so wide that they affect the readability of a worksheet, you should first
Alla [95]
The answer is (C) consider how you could shorten the column labels.

The label at the top of a column is sometimes wider than the data stored in the column. Expanding a column is an option but this may mean that you will not see as many columns on a page as possible. Wrapping text is also an option but has a downside to it as well since it will make the row with great height. 

Rotating the labels is also a possibility but is also not recommended. This leaves us with shortening the column labels and keep dictionary worksheet for users. As much as you can, consider using acronyms and abbreviations.






6 0
3 years ago
Read 2 more answers
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