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3 years ago

The use of computer in a modern world is as a result of complexity. true or false

Computers and Technology

1 answer:

Schach [20]3 years ago

6 0

This is false. The use of computer is a result of technology progress.

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Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional

kumpel [21]

Explanation:

hope this help here is the answer

3 0

3 years ago

Most of the international operations in a computer use hexadecimal numbering. True Or False

Natalija [7]

Answer:

True

Explanation:

The hexadecimal numbering is the most used numeric system for international operations in a computer, in our daily life we use the decimal system but for the CPU use the byte or octet as a basic unit of memory, we need more than 10 digits, and the hexadecimal system has 16, in addition, the binary system is hard to understand.

8 0

4 years ago

You are planning to use Spark to create a machine learning model that recommends restaurants to users based on user details and

SCORPION-xisa [38]

Answer:

The third point i.e " Use an alternating least squares (ALS) algorithm to create a collaborative filtering solution" is the correct answer .

Explanation:

The Alternating Less Squares is the different approach that main objective to enhancing the loss function.The Alternating Less Squares process divided the matrix into the two factors for optimizing the loss .The divided of two factor matrix is known as item matrix or the user matrix.

As we have to build the machine learning model which proposes restaurants to restaurants that are based on the customer information and the prior restaurant reviews the alternating least squares is the best model to implement this .
All the other options are not the correct model also they are not related to given scenario that's why they are incorrect options.

4 0

3 years ago

Write a C++ program to calculate the course score of CSC 126. 1. A student can enter scores of 3 quizzes, 2 exams, and a final e

miss Akunina [59]

Answer:

In C++:

#include <iostream>

using namespace std;

int main(){

double quiz1, quiz2, quiz3, exam1, exam2, finalexam,quiz;

cout<<"Quiz 1: "; cin>>quiz1;

cout<<"Quiz 2: "; cin>>quiz2;

cout<<"Quiz 3: "; cin>>quiz3;

cout<<"Exam 1: "; cin>>exam1;

cout<<"Exam 2: "; cin>>exam2;

cout<<"Final Exam: "; cin>>finalexam;

if(quiz1<=quiz2 && quiz1 <= quiz3){ quiz=(quiz2+quiz3)/2; }

else if(quiz2<=quiz1 && quiz2 <= quiz3){ quiz=(quiz1+quiz3)/2; }

else{ quiz=(quiz1+quiz2)/2; }

int weight = 0.20 * quiz + 0.30 * ((exam1 + exam2)/2) + 0.50 * finalexam;

cout<<"Average Weight: "<<weight<<endl;

if(weight>=91 && weight<=100){ cout<<"Letter Grade: A"; }

else if(weight>=81 && weight<=90){ cout<<"Letter Grade: B"; }

else if(weight>=70 && weight<=80){ cout<<"Letter Grade: C"; }

else{ cout<<"Letter Grade: F"; }

return 0;

}

Explanation:

See attachment for complete program where comments were used to explain difficult lines

Download cpp

8 0

3 years ago

Give two reasons why mobile internet may not be available everywhere.

andreev551 [17]

Answer:

Mobile Internet is dependant on cellular signal. Many countries, e.g. in Africa, don't have any coverage at all. Furthermore, mobile data might also not be available in the mountains as there are no cell towers and the rough terrain usually either blocks the signal entirely or weakens it significantly.

4 0

3 years ago