Answer:
Yes, the purpose of a database in a way is to stop people from using spreadsheets but, it is also so much more.
Explanation:
<u>Databases</u> are a vastly improved form of a spreadsheet. They allow Computer Scientists to automatize a company's information. Giving them the ability to instantly add, retrieve, and modify specific information within a database of hundreds or even thousands of entries. All this with little or no human input. Thus saving a company time and money as opposed to using a regular spreadsheet which requires manual input from an employee.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
Answer:
i) The time taken for 1500 records = 15 seconds.
ii) The time taken for 1500 records = 50 seconds.
Explanation:
A is an O(n) algorithm.
An algorithm with O(n) efficiency is described as a linearly increasing algorithm, this mean that the rate at which the input increases is linear to the time needed to compute that algorithm with n inputs.
From the question, it is given that for 1000 records, the time required is: 10 seconds.
Algorithm time taken is O(n)
Hence,
1) For 1,500 records
=> 10/1000 = x/1500
=> 10x1500/1000 = x
x = 15 seconds
Thus, the time taken for 1500 records = 15 seconds.
2) For 5,000 records
=> 10/1000 = x/5000
=> 10x5000/1000 = x
x = 50 seconds
Thus, the time taken for 1500 records = 50 seconds.
Answer:
The answer is "option iii" .
Explanation:
In the given question it is defined that a class "Rectangle" is defined in the class a parameter constructor is created that accepts two parameters. In this question, we create an instance of the class. In object creation first, we define class name then object name and use new keyword in the Instance of class and pass parameters.
- In option i), An object name is used first and then class name. It is not correct.
- In option ii), In instance creation of the class, we do not use class keyword that's why it is wrong.
Answer:
You don't really need the for loop to calculate B square.
The element-wise multiplication operator can help you get the square of each element of B.
B = [1, 2 3; 4, 5,6; 7,8,9];
B = B.^2;
Hope this helps!
