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Readme [11.4K]
3 years ago
11

The first query is computationally less expensive than the second query. (Assume no indexes exist on release_date.) Query 1: SEL

ECT DISTINCT(release_date) FROM books; Query 2: SELECT release_date FROM books;True or false?
Computers and Technology
1 answer:
sdas [7]3 years ago
7 0

Answer:

false

Explanation:

The term 'computationally expensive' means that a given mathematical function, code or an algorithm has high computational complexity. In addition, the mathematical function or algorithm will require several steps and procedures to be completed. Based on this, the statement made in this question is not true.

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A basic program to find the area of a square​
uranmaximum [27]

The area of a square is simply the square of the side. So, you only need to write a program that receives a number as input, which is the side of the square, and returns that number squared, which will be the area of the square.

You didn't specify any language, so for example here's a C implementation that receives the side from the user and returns the area:

#include <stdio.h>

int main()

{

   double side, area;

   

   do{

       printf("Enter the side of the square (must be >0): ");

       scanf("%lf", &side);

   } while(side<=0);

   area = side * side;

   printf("The area is %lf", area);

}

4 0
3 years ago
Speech about society being normal
Kisachek [45]

Answer:

Do you know what is best about America? It’s really the fact that the right to equality has been ensured at the maximum level, and for all. And the citizens respect their family and this is being showcased proudly by Sir Donald Trump who not only looks after the whole US without ever hesitating no matter whatever might be the issue and at the same time also look after his great and proven proud family. And that explains in itself why America is so great. And this is a perfect specimen of an inordinate democracy, and that is why American Democracy is so fruitful. There is sufficient money, all sorts of resources, the most influential military, and the world's finest technology. And American history can be a petite one, but it is one of the most noticeable histories in the entire world. You will not find such a great history in any other part of the world. And George Washington, the father of the country set such an example that the next various generations of great leaders were able to build such a great America. It is a society where every citizen enjoys equal rights, and a day before Sir Trump issued various prisoners with graduate degrees, to help them to return to the mainstream of life. No other society in the whole world enjoys such a level of privileges on behalf of equality. And that’s why the US society can be termed as the most normal in the whole world.

Explanation:

Please check the answer section. And I have chosen US as it is the most fruitful democracy of the world. And I feel all the counrtries from the entire world, should learn a lesson from the short history of United States. This is the way in which we can sight a normal society.

3 0
3 years ago
This is the formula for the future worth of an investment over time with consistent additional monthly payments and a steady rat
stepladder [879]

Answer:

The code is given in C++ below

Explanation:

#include <iostream>

using namespace std;

int main()

{

float fv,pv,r,k,n,pmt,totalmoneyinvested;

pv=1000.00;

r=6/100;

k=12; //The value of k should be 12 for monthly installments

n=45;

pmt=250;

totalmoneyinvested=pv+(pmt*12*45); //The total money you invested

 

fv=pv*(1+r/k)*n*k+pmt*((1+r/k)*n*k-1)*(1+r/k)*r/k;

 

cout<<"Initial Investment:"<<" $"<<pv;

cout<<"\nRate Of Return:6%";

cout<<"\nLength of Time:"<<n<<"year";

cout<<"\nMonthly Payment:"<<" $"<<pmt;

cout<<"\nFinal Amount:"<<" $"<<fv;

cout<<"\nThe Money You Invested Is $"<<totalmoneyinvested<<" And The Final Amount Is $"<<fv;

return 0;

}

4 0
3 years ago
Write a program which will -
Hitman42 [59]

Answer:

down below

Explanation:

score = input() # gets student's score input

max = input() # gets max number

percent = (score/max)*100 # multiply by a hundred to get percentage

if percent > 52: # checks if percent is greater than 52

  print("well dont you have at least a grade 5")

else # if percent is less than or equal to 52 it will print this instead

  print("Unlucky, you need to revise more for the next test.")

THIS PART IS NOT CODE:

make sure you indent/tab the print statements or else you'll get an error

6 0
3 years ago
3X5
yan [13]

Answer:

15

Explanation:

cause when you multiply three by five it will give u 15

7 0
2 years ago
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