Answer:
Great!
Explanation:
I use mobile phone and i use it as exmergency phone
Answer:
In C++:
#include <iostream>
using namespace std;
int main(){
string fname,lname; int num;
cout<<"Firstname: "; cin>>fname;
cout<<"Lastname: "; cin>>lname;
cout<<"4 digits: "; cin>>num;
string login = lname;
if(lname.length()>=5){
login = lname.substr(0, 5); }
login+=fname.substr(0,1)+to_string(num%100);
cout<<login;
return 0;
}
Explanation:
See attachment for explanation where I used comments to explain each line
Answer
File names should describe the content of the file.
Explanation
File names are set of words which are used to uniquely identify computer files which are stored in a file system. This helps one to know the contents of the file which you want to find. When you name these file names you use necessary characters you use descriptive words so that you dont have hard times when searching for them. The naming also is determined by the file system you are using because different systems impose different restrictions on the length of the file names and the allowed characters within file names.
Answer:
C. Mean
Explanation:
Mean = (∑
)/N
Median = central values when data is sorted
Mode = most repeated value
Standard deviation = 
In standard deviation, formula you may see that deviation is being calculated from the mean (central location). But here we take square of the value before adding all of them.
But if we just take 
, it would be equal to zero.
<u>EXAMPLE</u>
Take 4, 9, 5 as data
mean = (4+9+5)/3 = 18/3 = 6
sum of deviations from mean = (4-6)+(9-6)+(5-6) = (-2)+(3)+(-1) = 0
Answer:
Circuit breakers and fuses both have the same purpose, but a fuse will melt when stopping electricity where as circuit breakers can just be reset. You need both devices in order to stop a overload of power that could fry your electronics or worse, start fires.
Explanation:
