1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sergio [31]
2 years ago
10

In what year was the first permanent photographic image created?

Computers and Technology
1 answer:
kvv77 [185]2 years ago
5 0

Answer:

1826

Explanation:

it was in 1826 when the first permanent photographic image was created.

You might be interested in
What keyword is used to declare a method in python?
Harrizon [31]
I think the answer is B
8 0
2 years ago
Double any element's value that is less than controlValue. Ex: If controlValue = 10, then dataPoints = {2, 12, 9, 20} becomes {4
Aleksandr [31]

Answer:

import java.util.Scanner;

public class StudentScores

{

public static void main(String[] args) {

 Scanner scnr = new Scanner(System.in);

 final int NUM_POINTS = 4;

 int[] dataPoints = new int[NUM_POINTS];

 int controlValue;

 int i;

 controlValue = scnr.nextInt();

 for (i = 0; i < dataPoints.length; ++i) {

     dataPoints[i] = scnr.nextInt();

 }

 for (i = 0; i < dataPoints.length; ++i) {

     System.out.print(dataPoints[i] + " ");

 }

 System.out.println();

 for (i = 0; i < dataPoints.length; ++i) {

     if(dataPoints[i] < controlValue){

         dataPoints[i] = dataPoints[i] * 2;          

     }

     System.out.print(dataPoints[i] + " ");

 }

}

}

Explanation:

*Added parts highligted.

After getting the control value and values for the array, you printed them.

Create a for loop that iterates through the dataPoints. Inside the loop, check if a value in dataPoints is smaller than the contorolValue. If it is, multiply that value with 2 and assign it to the dataPoints array. Print the elements of the dataPoints

5 0
3 years ago
Read 2 more answers
Select the correct term to complete the sentence.
Marat540 [252]

Answer:

A program that searches a database for specific words and returns a list of webpages or documents in which the search term was found. ... A _____ is an application that runs in a

Explanation:

6 0
2 years ago
Read 2 more answers
Write a function called st_dev. St_dev should have one #parameter, a filename. The file will contain one integer on #each line.
kodGreya [7K]

Answer:

  1. import statistics
  2. def st_dev(file_name):
  3.    with open(file_name) as file:
  4.        data = file.readlines()
  5.        numList = []
  6.        for x in data:
  7.            numList.append(int(x))
  8.        
  9.        return statistics.pstdev(numList)
  10. print(st_dev("text1.txt"))

Explanation:

The solution code is written using Python.

To ease the calculation task, we can import Python statistics module to use the pstdev method to calculate the population standard deviation of a list of numbers (Line 1).

Next, create a st_dev function that take single argument file_name (Line 3). In the function, it will open the input file and read the data line by line (Line 4-5). Create a for loop to traverse through each line of the data which is an integer and append it to numList (Line 7-8). We can pass the numList to pstdev method (Line 10) and return the resulting standard deviation value as output.

We test the function by passing a file which hold a list of integer values in each line (Line 12).

8

9

12

11

21

15

16

10

7

13

And the output we shall get is 4.019950248448356

6 0
3 years ago
Add me on xbox ahaha craig#6822 this is also just for points
Monica [59]

Answer:

sadly i dont have one:(

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which group allows you to add notes to your presentation?Ella has finished drafting her presentation. What should she do next?
    15·2 answers
  • How could a system be designed to allow a choice of operating systems from which to boot? What would the bootstrap program need
    14·1 answer
  • Some cases have ____, also called spacers, which are round plastic or metal pegs that separate the motherboard from the case, so
    9·1 answer
  • Your hometown probably has little to offer in terms of photography because you've already seen it. True False
    14·1 answer
  • To print the last element in the array named ar, you can write :A. System.out.println(ar.length);
    13·1 answer
  • The name of a .java file should ______________________________. Always match the name of the Class inside Should always start wi
    9·1 answer
  • Please help i only have 20 minuets
    5·1 answer
  • Snippet 1: check_file_permissions.c #include
    9·1 answer
  • Digital communication and production chapter 17
    6·1 answer
  • Which of the examples is part client side code
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!