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fenix001 [56]
2 years ago
7

Which of the following is true when representing a 1:1 binary relationship using the relational model

SAT
1 answer:
Arisa [49]2 years ago
5 0

When a 1:1 binary relationship is represented by using the relational model: C) the key of either entity is placed in the other as a foreign key.

<h3>What is an entity relationship?</h3>

An entity relationship refers to a data model with the highest level of abstraction and it's designed to avail designers an ability to use a graphical tool to examine structures rather than describe them by using text.

In Computer technology, when a 1:1 binary relationship is represented by using the relational model, the true statement is that the key of either entity is usually placed in the other entity as a foreign key.

Read more on entity relationship here: brainly.com/question/14530873

#SPJ1

Complete Question:

Which of the following is true when representing a 1:1 binary relationship using the relational model?

A) The key of the entity with the highest minimum cardinality must be placed in the other entity as a foreign key.

B) The key of each entity must be placed in the other as a foreign key.

C) The key of either entity is placed in the other as a foreign key.

D) The key of the entity with the most attributes must be placed in the other entity as a foreign key.

E) Both entities must have the same primary key.

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A farmer began a new method of reducing grain spills. This reduced the number of mice on the farm. The number of snakes in the s
IRINA_888 [86]

<u>ANSWER:</u>

The correct option is "The number of mice decreased".

<u>EXPLANATION: </u>

It is clearly given in the question that the snakes depended on the mice for their survival. The snakes fed on the mice on the field. When the new method of grain spill was found, the mice could not find enough grain to eat and therefore they either left the field or died because of hunger.

`The reduced population of mice was not enough for the snakes which in turn either died or moved to another place for survival.  

4 0
4 years ago
A rectangular pyramid measures three feet by four feet at the base and has a height of seven feet. find its volume.
Slav-nsk [51]

The volume of the rectangular pyramid is 28 cubic feet.

<h3>How to find the volume of the pyramid?</h3>

The volume of a pyramid of base B and height H is given by:

V = (1/3)*B*H

Here we know that the height is H = 7ft, and the base is a rectangle of 4ft by 3ft, so the area of the base is:

B = 4ft*3t = 12ft^2

Then the volume of the pyramid is:

V = (1/3)*7ft*12ft^2 = 28ft^3

If you want to learn more about volumes:

brainly.com/question/1972490

#SPJ1

3 0
2 years ago
Which of the following is NOT true concerning the curl-up test? A. The curl-up only tests the endurance of the abdominal muscles
ra1l [238]

Answer;

A. The curl-up only tests the endurance of the abdominal muscles, not their strength

Explanation;

Curl up test measures abdominal strength and endurance. This test focuses predominantly on the main abdominal muscle, the rectus abdominus, and may not evaluate the core as a whole.

This test requires the athlete to complete as many curl-ups as possible at a rate of 20/minute. This test provides a means to monitor the effect of training on the athlete's physical development.

6 0
3 years ago
PLS I REALLY NEED HELP
Juli2301 [7.4K]

Answer:

Because only the House can originate tax bills, and both chambers are needed to approve

Explanation:

Because before Congress can raise taxes, the president must ask them to do so - Wrong, Congress dose not need the president permission to vote on something

Because he was preparing them to accept tax increases he planned to impose as president - Wrong, the President dose not need prepare congress for anything. Congress has the power under the U.S Constution to handle changeing and creating new laws.

Because without Congress voting to raise taxes, it would have been impossible to get the loans - Wrong, because the states individual could choose to raise taxes for their own states.

Therofre, I will go with

Because only the House can originate tax bills, and both chambers are needed to approve

8 0
3 years ago
Which of the following is a benefit of enrolling in a prepaid tuition plan?
nalin [4]

Answer: B

Explanation:

locking in current tuition rates for future college education

8 0
3 years ago
Read 2 more answers
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