Questions

In 1814, George Stephenson developed steam engine to haul coal from mines to ports by railways. In 1830, the first railway train began to carry passengers and freight from Liverpool to Manchester.

Let that something be 'x'

From the given data,

x + x/5 = 21

5x + x/5 = 21

6x = 21 x 5

=> x = 17.5

Hence, that something is x = 17.5.

FALSE. Sensitive data is NOT always classified.

Sensitive information is data that must be protected from unauthorized access to safeguard the privacy or security of an individual or organization.

There are three main types of sensitive information:

1. Personal information

2. Business information

3. Classified information

Data is "Classified" based on the damage that might result from unauthorized disclosure. Some data is Sensitive, but will not necessarily do harm to the country if released publicly - such as PII- which could do harm to individuals if released but not necessarily the country.

Here the given compound is MgSO4.

In the given compound, Sulphur (S) and Oxygen (O) are two non metals and Magnesium (Mg) is a metal.

In this compound, Sulphur and Oxygen reacts to form covalent bond and the metal Magnesium reacts with both non metals Sulphur and Oxygen to form ionic bonds.

Hence, in the given compound MgSO4 there are both covalent and ionic bonds.

atoi()         Converts a string to an integer.

itoa()         Convert an integer to a string

gcvt()        Converts a floating-point number to a string

#include "stdlib.h"

main()

{

      char s[] = "12345";

      char buffer [15], string[20];

      int i;

      i = atoi (s);

      printf("\n%d",i);

       gcvt (20.141672, 4, buffer);

       printf ("\n%s", buffer);

       itoa(15, string,2);

        printf ("\n%s", string);

}