Answer:
The following are the answer to this question:
Explanation:
In the question the choices were missing, that's why we define the correct choice only, but first, we define the survey.
The survey is a data collection method, or knowledge on various topics from a predetermined group of participants, in which the users can have several objectives, or researchers will do it. In this question, the survey is a voluntary actual response survey, therefore the findings may not represent the people.
When permanent magnets of a motor are replaced with more powerful ones, the motor rotation will increase. This is because there is more electricity being generated.
Answer:
The answer to this question can be given as:
The first antivirus was written in 1987 by the German security expert Bernd and the name of the antivirus is Vienna Virus.
Explanation:
Antivirus: It is a software or anti-malware software that is used for providing security. It is a tool that runs on various digital devices and searches for files that should not be on your computer. If the file is found then It defends the computer from incoming threats and seeks-out, stops and alerts of viable threats from the system so the computer works properly. So, the first antivirus was developed in 1987 by German security expert Bernd.
Answer:
Select SUM(HOURS), SUM(CHARGES) from employees
Explanation:
The table structure is not given. So, I will assume that the table name is "employees", the columns to retrieve are "hours" and "charges"
Having said that, the function to retrieve the total of column is the sum() function.
So, the query is as follows:
Select ----> This means that the query is to retrieve from the table
SUM(HOURS), SUM(CHARGES) --- This represent the records to retrieve
from employees ---- This represents the table to retrieve from.
Answer:
ADA LOVELACE
Explanation:
Ada Lovelace was born into a historically famous family. She could have lived well through her father's fame and her mother's money-instead she decided to write a computational algorithm, earning her the title of the mother of programming, and became the first computer programmer in the mid-1800s1,2.
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