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madreJ [45]
3 years ago
5

A STUDENT can take many COURSES and a COURSE can have more than one STUDENT enrolled in the course. In this case, both the "stud

ent_id" and "course_id" primary keys become foreign keys and primary keys in a new entity called COURSE-STUDENT. What is the main reason for creating a new entity?
a. To reinforce data accuracy
b. To preserve data completeness
c. To eliminate possible data redundancy
d. To achieve data consistency
Computers and Technology
1 answer:
Marina CMI [18]3 years ago
8 0

Answer:C. To eliminate possible data redundancy.

Explanation:Data redundancy is a term used in data management system or process to mean the storage of the same data in different locations, this type of situation need to prevented for effective and efficient data management system or process.The main reason for creating a new entity is to eliminate the possibility of data redundancy which not desireous and not required.

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Intro to cs 3.7 edhesive g=float(input("Enter your English test grade:")) if(g<=64): print("F") if (g>=65 and g<69): pr
qwelly [4]

Answer:

The correct code for this question:

g=float(input("Enter your English test grade:")) #take input from user.

#check conditions

if (g>=100 and g<=90):

print ("A")

#g greater then equal to 100 and less then equal to 90.

if (g>=89 and g<=80):

print("B")

#g greater then equal to 89 and less then equal to 80.

if (g>=79 and g<=70):

print("C")

#g greater then equal to 79 and less then equal to 70.

if (g>=69 and g<=65):

print("D")

#g greater then equal to 69 and less then equal to 69.

if(g<=64):

print("F")

#g less then equal to 64.

else:

print ("Not a grade")

#not a grade or fail.

Explanation:

In this program, we use to take a value from the user and check the value from the various conditions. To check all the condition we use if-else statement and AND operator that check to the range to together.

If -else is a conditional operator. In that, If block is used to check the true part and else part takes false value, and AND is a logical operator that check the two range together  

5 0
3 years ago
Using complete sentences post a detailed response to the following.
KatRina [158]

Answer:A couple disadvantaged are the migraines that is can cause. And it can cause eye strain there are alot of things that could hurt your eyes. Like being in virtual reality for to long. It can very rarely make you go blind.

Explanation: sorry if its wrong

8 0
3 years ago
If you are going to develop a special computer, what would it be and explain it's purpose.​
Ann [662]

Answer:

It would be to figure out what cancers someone could exactly so no need for a biopsy

4 0
3 years ago
What is the command to disable any Processes in linix??
stiks02 [169]

Answer: killall[process_name]  or kill[PID]

Explanation:

Killall is a tool for disabling running processes on the system. It will disable all programs that matches the name mentioned.

kill disables processes based on process id numbers. it does not disable the process directly. The process recieves a signal where the process will follow instructions which it has to follow if it receives the signal.

7 0
3 years ago
This describes what is charted. It can be placed above or below the chart.
Tems11 [23]

Answer:

a . chart area

This describes what is charted. It can be placed above or below the chart.

Explanation:

3 0
2 years ago
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