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Andreas93 [3]
3 years ago
10

You recently started working part-time in a retail store, and are learning about the reading devices your store uses. Your store

uses a bar code reader to process items during checkout. What type of technology does the bar code reader use
Computers and Technology
1 answer:
Pachacha [2.7K]3 years ago
5 0

Answer:

Laser beams

Explanation:

The laser beams technology is being used by bar code reader.

You might be interested in
can someone help me write a 5 paragraph essay on microsoft word and why we need and how we use it? if you can please make it sou
DaniilM [7]
Here are some important points:
- we use it to do essays for school
- we can use it to do flyers for recreational events
- we can use it to do pamphlets to inform people
- it is versatile, so you can create many different types of documents
- you can create charts

This can be your opening statement

Today, there is a lot asked of a child in school. From charts to essay to projects, the average kid has at least 10 different programs they use just for one project. But there is one program that came along and changed everything, and that program is called Microsoft word. Microsoft word is valuable because it is versatile (what I wrote earlier about it being able to do many different tasks), it simplifies your experience (what i said about it being able to combine different programs into one), and it is free (you can write about how some programs charge to use their high-grade programs but microsoft is free and avaialabe on every windows
computer.)

GOOD LUCK !
4 0
3 years ago
I need to create a method named "root positive". which will either print the square root of the number passed to it or if the nu
rjkz [21]

Answer:

Explanation:

The following code is written in Java. It is a method that calculates the square root of a number as requested. The method first checks with an IF statement if the parameter value is a positive number and then calculates the square root and prints it to the screen. Otherwise, it prints Number must not be negative. A test case has been provided in the main method and the output can be seen in the attached image below.

import java.util.Scanner;

class Brainly {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.print("Enter a number of type double to calculate square root:");

       double num = in.nextDouble();

       rootPositive(num);

   }

   public static void rootPositive(double num) {

       if (num > 0) {

           System.out.println(Math.sqrt(num));

       } else {

           System.out.println("Number must not be negative.");

       }

   }

}

5 0
3 years ago
Suppose that the bag class is efficiently implemented with a fixed array with a capacity of 4000, as in Chapter 3 of the class t
Phoenix [80]

Answer:

b.used is 2, b.data[0] is 4, b.data[1] is 6

Explanation:

bag b;

b.insert(5); // b has 5

b.insert(4); // b has 5,4

b.insert(6); // b has 5,4,6

b.erase_one(5); // now 5 is removed , b has 4,6

so no:of elements b.used is 2

b[0]=4;

b[1]=6;

6 0
3 years ago
A_________is an orderly collection of fact & information.
sammy [17]

Answer:

C. Database

Explanation:

4 0
3 years ago
A string that contains only 0s,1s, and 2s is called a ternary string. How many strings of 10 ternary digits (0, 1, or 2) are the
alexdok [17]

Answer:

Number of strings = (10, 2)×(8,3) = 2520

Explanation:

The number of possible combinations for taking two 0's is C(10, 2)

It remains 8 Positions

The number of possible combinations for taking three 1's is C(8,3)

So there remains 5 spots

8 0
3 years ago
Read 2 more answers
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