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sergij07 [2.7K]
3 years ago
8

What is a main cause of an aurora?

Computers and Technology
1 answer:
Levart [38]3 years ago
3 0
Collision between fast moving particles
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Accepted identifier for a variable in PHP except:
olganol [36]

Answer:

b. & Puihaha

Explanation:

PHP variables are supposed to start with a $ sign.

Other rules followed by PHP variables are:

Starting character in variable name (after $) must be letter or _.

Other characters in variable names can be letters,numbers or _.

a. $_Puihaha

c. $Pui_haha

d. $Puihaha

satisfy these rules.

Whereas , b. & Puihaha does not satisfy as it starts with '&'. Moreover it also contains an invalid space character in the variable.

3 0
3 years ago
What does it mean to calculate frequencies within a dataset
Vadim26 [7]
To count the number of times a dataset is used by a student 
<span>to calculate the product of two variables to make a third variable </span>
<span>to count the number of cases that fall into different subgroups within a dataset </span>
<span>to calculate the sum of a column of variables in a dataset </span>
7 0
3 years ago
Read 2 more answers
An inserted graphic in Excel is
telo118 [61]
<h2>Answer:</h2>

<u>An inserted graphic in Excel is </u><u>B. inserted in the active cell.</u>

<h2>Explanation:</h2>

A graphic is considered as any picture or shape present in the directory of any computer. So when you are working in an Excel worksheet and you insert any graphic so it means you have inserted a shape. It may be a line, picture or any other geometrical shape, then this image or graphic will be inserted in the cell which is active at that time and no where else. Therefore option B is the correct answer.

7 0
4 years ago
Read 2 more answers
the process of adjusting an IDPS to maximize its efficiency in detecting true positives, while minimizing both false positives a
Dafna1 [17]

Answer:

Tuning. See explanation below.

Explanation:

Tuning

By definition the tuning is: "the process of adjusting an IDPS to maximize its efficiency in detecting true positives, while minimizing both false positives and false negatives."

And this process is the improvement of system performance in computer science. Usually is related to optimization of a process, when we us tunning, we can follow these steps:

a) Identify which numeric values are acceptable and improve the parameters

b) Take a measure for the system originally and without the tunning in order to have an initial comparative measure

c) Understand that each process have a critical path, we need to identify it.

d) Modify parts who not improve the efficiency of the algorithm

e) Check the performace when we apply modifications

5 0
4 years ago
Print person1's kids, call the incNumKids() method, and print again, outputting text as below. End each line with a newline.
Brilliant_brown [7]

Answer:

Explanation:

The following code was written in Java and modifies the code so that for the given input such as 3 it outputs the exact information shown in the sample output.

import java.util.Scanner;

class CallPersonInfo {

   public static void main(String [] args) {

       Scanner scnr = new Scanner(System.in);

       PersonInfo person1 = new PersonInfo();

       int personsKid;

       System.out.println("How many kids do you have:");

       personsKid = scnr.nextInt();

       person1.setNumKids(personsKid);

       /* Your solution goes here */

       System.out.println("Kids: " + person1.getNumKids());

       person1.incNumKids();

       System.out.println("New Baby, kids now: " + person1.getNumKids());

   }

}

class PersonInfo {

   private int numKids;

   public void setNumKids(int setPersonsKids) {

       numKids = setPersonsKids;

   }

   public void incNumKids() {

       numKids = numKids + 1;

   }

   public int getNumKids() {

       return numKids;

   }

}

4 0
3 years ago
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