What are the paragraph different formatting paragraph tools?draw its icon and state its function.

Which of the following best explains how algorithms that run on a computer can be used to solve problems?

timama [110]

The statement which best explains how algorithms running on a computer can be used to solve problems is; D. Some problems cannot be solved by an algorithm.

<h3>What is an algorithm?</h3>

An algorithm is simply a standard formula or procedures which is made up of a set of finite steps and instructions that must be executed on a computer, so as to proffer solutions to a problem or solve a problem under appropriate conditions.

However, it should be noted that it is not all problems that can be solved by an algorithm, especially because the required parameters and appropriate conditions are not feasible or met.

Read more on algorithm here: brainly.com/question/24793921

7 0

2 years ago

Choose the term that describes each step of the cycle.

stich3 [128]

Answer:

The answer to this question is given below in the explanation section.

Explanation:

This question is about to tell the best and suitable terms for the given descriptions in the question.

As we know that a computer program is based on sets of instructions. The CPU carries out the processing using the fetch decode and execute cycle.

It is responsible for implementing a sequence of instructions called a computer program that takes input, processes them, and outputs the result based on processing.

A CPU mainly has three components such as control unit, Arithmetic logic unit, and register.

The control unit controls all parts of the computer system. It manages the four basic operations of the Fetch Execute Cycle such as Fetch, Decode, Executes, and Storage.

So the correct terms of this question are:

Fetch: Gets next instruction

Decode: interprets the instruction

Execute: Carries out instruction.

Store: Save results of instruction.

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2 years ago

Describe shortly about the following Linux directories and theirpurpose,1. lib2. etc3. Boot4. Root5. home

Bingel [31]

Answer:

Linux directories and their purposes are:

1) lib - Lib file contained the share object library file which necessary to boots system and this directory contain file module stored in the kernel.

2) etc - etc file is the configuration file that they are local in the machines. When the program run these file are stored in the directories. this can be static and do not executable directory.

3) Boot - Boot file are stored in the directory which required processing of linux boot and such files are included in the linux kernel of the file.

4) Root - Root file are the best user root directory and user cannot view this directories from there account. This file usually contain administrative file system.

5) Home - Home file contained the user directory and it is the default system of linux. Home directory helps user to enable any network system to access there home directories.

5 0

2 years ago

[1] Please find all the candidate keys and the primary key (or composite primary key) Candidate Key: _______________________ Pri

AVprozaik [17]

Answer:

Check the explanation

Explanation:

1. The atomic attributes can't be a primary key because the values in the respective attributes should be unique.

So, the size of the primary key should be more than one.

In order to find the candidate key, let the functional dependencies be obtained.

The functional dependencies are :

Emp_ID -> Name, DeptID, Marketing, Salary

Name -> Emp_ID

DeptID -> Emp_ID

Marketing -> Emp_ID

Course_ID -> Course Name

Course_Name -> Course_ID

Date_Completed -> Course_Name

Closure of attribute { Emp_ID, Date_Completed } is { Emp_ID, Date_Completed , Name, DeptID, Marketing, Salary, Course_Name, Course_ID}

Closure of attribute { Name , Date_Completed } is { Name, Date_Completed , Emp_ID , DeptID, Marketing, Salary, Course_Name, Course_ID}

Closure of attribute { DeptID, Date_Completed } is { DeptID, Date_Completed , Emp_ID,, Name, , Marketing, Salary, Course_Name, Course_ID}

Closure of attribute { Marketing, Date_Completed } is { Marketing, Date_Completed , Emp_ID,, Name, DeptID , Salary, Course_Name, Course_ID}.

So, the candidate keys are :

{ Emp_ID, Date_Completed }

{ Name , Date_Completed }

{ DeptID, Date_Completed }

{ Marketing, Date_Completed }

Only one candidate key can be a primary key.

So, the primary key chosen be { Emp_ID, Date_Completed }..

2.

The functional dependencies are :

Emp_ID -> Name, DeptID, Marketing, Salary

Name -> Emp_ID

DeptID -> Emp_ID

Marketing -> Emp_ID

Course_ID -> Course Name

Course_Name -> Course_ID

Date_Completed -> Course_Name

3.

For a relation to be in 2NF, there should be no partial dependencies in the set of functional dependencies.

The first F.D. is

Emp_ID -> Name, DeptID, Marketing, Salary

Here, Emp_ID -> Salary ( decomposition rule ). So, a prime key determining a non-prime key is a partial dependency.

So, a separate table should be made for Emp_ID -> Salary.

The tables are R1(Emp_ID, Name, DeptID, Marketing, Course_ID, Course_Name, Date_Completed)

and R2( Emp_ID , Salary)

The following dependencies violate partial dependency as a prime attribute -> prime attribute :

Name -> Emp_ID

DeptID -> Emp_ID

Marketing -> Emp_ID

The following dependencies violate partial dependency as a non-prime attribute -> non-prime attribute :

Course_ID -> Course Name

Course_Name -> Course_ID

So, no separate tables should be made.

The functional dependency Date_Completed -> Course_Name has a partial dependency as a prime attribute determines a non-prime attribute.

So, a separate table is made.

The final relational schemas that follows 2NF are :

R1(Emp_ID, Name, DeptID, Marketing, Course_ID, Course_Name, Date_Completed)

R2( Emp_ID , Salary)

R3 (Date_Completed, Course_Name, Course_ID)

For a relation to be in 3NF, the functional dependencies should not have any transitive dependencies.

The functional dependencies in R1(Emp_ID, Name, DeptID, Marketing, Date_Completed) is :

Emp_ID -> Name, DeptID, Marketing

This violates the transitive property. So, no table is created.

The functional dependencies in R2 ( Emp_ID , Salary) is :

Emp_ID -> Salary

The functional dependencies in R3 (Date_Completed, Course_Name, Course_ID) are :

Date_Completed -> Course_Name

Course_Name -> Course_ID

Here there is a transitive dependency as a non- prime attribute ( Course_Name ) is determining a non-attribute ( Course_ID ).

So, a separate table is made with the concerned attributes.

The relational schemas which support 3NF re :

R1(Emp_ID, Name, DeptID, Course_ID, Marketing, Date_Completed) with candidate key as Emp_ID.

R2 ( Emp_ID , Salary) with candidate key Emp_ID.

R3 (Date_Completed, Course_Name ) with candidate key Date_Completed.

R4 ( Course_Name, Course_ID ). with candidate keys Course_Name and Course_ID.

6 0

3 years ago

Select the examples that best demonstrate likely tasks for Revenue and Taxation workers. Check all that apply. Brenda works for

umka2103 [35]

Answer:

Brenda works for the IRS reviewing paperwork.

Jenny reviews buildings to determine how much money they are worth

Kareem advises businesses to make sure they handle their finances correctly.

Explanation:

5 0

3 years ago

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