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gladu [14]
2 years ago
8

Tick the best alternatives 1. Which one of the following is input device? a) Speaker b) Printer c. Monitor d. Mouse​

Computers and Technology
2 answers:
Alex787 [66]2 years ago
8 0

Answer:

D. Mouse

Explanation:

An input device is a device that help input data or commands. A mouse here helps to issue commands to the computer

Sav [38]2 years ago
5 0

Answer:

d. Mouse

Explanation:

A <em>mouse</em> is used to move a the cursor around the screen. You use the mouse to open applications or drag and drop files. It gives the computer instructions <em>(input)</em> . Therefore it is an input device.

<h2>Output devices :</h2>
  • A <em>speaker</em> is an output device because it outputs sounds.
  • A <em>printer</em> is an output device which is used to output information(print) on paper.
  • A <em>monitor</em> is used to display.

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3 years ago
The original U.S. income tax of 1913 was quite simple. The tax was
Svetradugi [14.3K]

Answer:

       Scanner inputObject = new Scanner(System.in);

       System.out.print("Enter your income to calculate the tax: ");

       double income = inputObject.nextDouble();

       double tax = 0;

       if (income <= 50000) {

           tax = income * 0.01;

       }

       else if (income > 50000 && income <= 75000) {

           tax = income * 0.02;

       }

       else if (income > 75000 && income <= 100000) {

           tax = income * 0.03;

       }

       else if (income > 100000 && income <= 250000) {

           tax = income * 0.04;

       }

       else if (income > 250000 && income <= 500000) {

           tax = income * 0.05;

       }

       else if (income >= 500000) {

           tax = income * 0.06;

       }

       System.out.printf("Your tax is: $%.2f", tax);

Explanation:

Here is the Java version of the solution. The user is asked to enter the income and the tax is printed accordingly.

<em>Scanner</em> class is used to take input from user, and the value is stored in <em>income</em> variable. A variable named <em>tax</em> is initialized to store the value of the tax.

Then, if structure is used to check the <em>income</em> value. This <em>income</em> value is checked to decide the amount of the tax will be paid. For example, if the <em>income</em> is $100000, the tax will be calculated as tax = 100000 * 0.03 which is equal to $3000.00. After calculating the <em>tax</em> value, it is printed out using System.out.printf("Your tax is: $%.2f", tax);.

Be aware that the values are <u>double,</u> <u>printf</u> is used to print the value. "<u>%.2f</u>" means print the<em> </em><u>two decimal values</u> in the result.

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Answer:

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