Which of these is a possible disadvantage of working with a team?

Can you answer my question it's a bit confusing to me! I'm adding brainlist too!

Inessa05 [86]

Answer:

Double spaced means more space in between lines and there is an option in Google Docs or Word to make it double spaced. One inch margin means that there is one inch between the edge of the paper and where the words start.

6 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

2 years ago

Sonic the Hedgehog (1991)

e-lub [12.9K]

Answer:

What if we made a fast game?

Explanation:

The mascot is the person, animal or thing which brings good luck, just like Mario. However, this is not a problem with Sonic the Hedgehog. And the Hedgehog is powerful enough to cross any barrier. Hence tieing the collectibles is not required. And the Hedgehog is quite cute and domestic. But it moves only 10 meters per second if we are considering the maximum speed. Hence, the correct option is certainly what if we made a fast game? And this is option C.

7 0

2 years ago

Write the Number class that can be used to test if the number is odd, even, and perfect. A perfect number is any number that is

egoroff_w [7]

Answer:

Explanation:

The following code is written in Python. It creates a class that takes in one ArrayList parameter and loops through it and calls two functions that check if the numbers are Perfect, Odd, or Even. Then it goes counting each and printing the final results to the screen.

class NumberAnalyzer:

def __init__(self, myArray):

perfect = 0

odd = 0

even = 0

for element in myArray:

if self.isPerfect(element) == True:

perfect += 1

else:

if self.isEven(element) == True:

even += 1

else:

odd += 1

print("# of Perfect elements: " + str(perfect))

print("# of Even elements: " + str(even))

print("# of Odd elements: " + str(odd))

def isPerfect(self, number):

sum = 1

i = 2

while i * i <= number:

if number % i == 0:

sum = sum + i + number / i

i += 1

if number == sum:

return True

else:

return False

def isEven(self, number):

if (number % 2) == 0:

return True

else:

return False

6 0

2 years ago

Pre-made, copyright-free illustrations are called __________. apps clip art graphic design stock photos

IceJOKER [234]

Answer: clip art

Explanation:

The clip arts are graphic images that are pre-made illustrations for the purpose of creating any medium (designs or art).
It has no restrictions to use them, it can be used by anyone, hence its copyright-free.
It comes in both electronic and printed form.
But mostly they are designed and distributed and used by a person in an electronic form.

Hence, the complete statement is "Pre-made, copyright-free illustrations are called <u>clip art</u>".

7 0

2 years ago