Describe the two alternatives for specifying structural constraints on relationship types. what are the advantages and disadvantages of each?

Answers

Answer 1

Answer:

The two alternatives for specifying structural constraints on relationship types are:

• Cardinality ratio and

• Participation constraint

Cardinality ratio

Cardinality ratio is a simple way of specifying designs, it is specifies the maximum number of relationship a body/ entity can be engaged in.

Advantage of Cardinality ratio

It is used to simply complex designs

Disadvantage of Cardinality ratio

No specific number can be said to be maximum

Participation constraint

Participation constraint specifies the dependency of an entity on another entity based on the relationships existing between the entities.

Advantage of Participation constraint

It specifies the maximum number of relationship an entity can engage

It shows the dependency of an entity on another

Disadvantage of Participation constraint

It is a more expensive alternative

Explanation:

So we can conclude that the two alternatives for specifying structural constraints on relationship types are:

Cardinality ratio and Participation constraint

I hope this helps


Related Questions

A designer of soup cans wants to redesign the cans by enlarging the area of the base to three times the original size. The new can should hold the same amount of soup. How should the designer change the height of the can?

Answers

The designer should change the height of the can and maintain the same volume by doubling the area of the base of the can.

How to change the height of the can

Area of a cylinder, V= πr²h

Where:

r= base radiush= height.

Area of the base, A= πr²

So,

volume of the cylinder;

V= A×h

For instance,

if volume of a cylinder is 50cm³ and area of the base is 10cm²

V= A*h

50 = 10 × h

50 = 10h

h = 50/10

h = 5cm

If the area of the base is doubled at a constant volume, that is A = 20cm², V = 50cm²

V= A×h

50 = 20 × h

50 = 20h

h = 50/20

h = 2.5 cm

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Which of the following is NOT a character effect?
a.
Italic
b.
Times New Roman
c.
Bold
d.
Shadow


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

B is not a character effect, it is a type of font.

Oraciones complete the sentences with the correct form of the appropriate verb from the list. one verb is used more than once.

Answers

There are different kinds of verbs. The correct form of the verbs is  Mis amigos salen conmigo al centro.

What are Spanish verbs?

Spanish verbs are known to be a kind of verbs that often create one or more complex aspect of Spanish grammar. its example is Haber whih means to have in English.

In the above, salen is the best form of verb for the sentence "Mis amigos salen conmigo al centro"as it tells the action at that point.

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Which description of the transformation of z on the complex plane gives the product of and 2 = startroot 8 endroot (cosine (startfraction pi over 4 endfraction) + i sine (startfraction pi over 4 endfraction) )? scale z by a factor of 4, then rotate counterclockwise startfraction pi over 2 endfraction radians scale z by a factor of startroot 8 endroot, then rotate counterclockwise startfraction pi over 2 endfraction radians scale z by a factor of startroot 8 endroot, and then rotate counterclockwise startfraction pi over 4 endfraction radians scale z by a factor of 4, then rotate counterclockwise startfraction pi over 4 endfraction radians

Answers

Answer:

Scale z by a factor of [tex]\sqrt{8}[/tex], and then rotate counterclockwise [tex]\frac{\pi }{4}[/tex] radians.

Explanation:

Got it right on Edge 2022 (I'm assuming it's this question)

Answer:

C. scale z by a factor of StartRoot 8 EndRoot, and then rotate counterclockwise StartFraction pi Over 4 EndFraction radians

Explanation:

What is the approximate length of the apothem? 0.4 cm 0.8 cm 1.5 cm 1.9 cm

Answers

Answer:

C.) 1.5 cm

Explanation:

i took the test on edge 2022

A teacher tells her students that a large jar of marbles contains 55% red marbles. students randomly select a sample of 40 marbles and determined the proportion of red marbles. one sample a student selected contained 16 red marbles. assuming the teacher’s claim is true, 100 simulated proportions are displayed in the dotplot. using the dotplot and sample proportion, is there convincing evidence that the teacher’s claim is false? yes, because a proportion of 0.40 or more occurred 98 out of 100 times, the sample proportion of red marbles is statistically significant and there is convincing evidence that the teacher’s claim is false. yes, because a proportion of 0.40 or less occurred only 2 out of 100 times, the sample proportion of red marbles is statistically significant and there is convincing evidence that the teacher’s claim is false. no, because a proportion of 0.40 or more occurred 98 out of 100 times, the sample proportion of red marbles is not statistically significant and there is not convincing evidence that the teacher’s claim is false. no, because a proportion of 0.40 or less occurred 2 out of 100 times, the sample proportion of red marbles is not statistically significant and there is not convincing evidence that the teacher’s claim is false.

Answers

There is convincing evidence that the teacher's claim is false because:

"a proportion of 0.45 or more occurred 87 out of 100 times" (Option A).

Why is the Teacher's Claim False?

The teacher's claim is false because a percentage of 0.45 or more occurred 87 out of 100 times.

What this says is that the sample of red marbles is statistically significant.

Therefore, the teacher's claim that the large jar of marbles contains 55% red marble is false.

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Answer:

b

Explanation:

b

stocks x and y have the following data. assuming the stock market is efficient and the stocks are in equilibrium, which of the following statements is correct?

Answers

The correct statement is these two stocks must have the same dividend yield.

What is the dividend yield of the stock?

Dividend yield of a stock is the dividend per share divided by the total market price of the stock.

Dividend yield = dividend per share / market price

Dividend per share = market value x (required return - expected growth)

Dividend per share for Stock X = $25 x (10% - 7%) = $0.75

Dividend per share for Stock Y = $40 x (12% - 9%) = $1.20

Dividend yield for Stock X = 0.75 / 25 = 0.03

Dividend yield for Stock Y = 1.20 / 40 = 0.03

Here is the complete question:

Stocks A and B have the following data. Assuming the stock market is efficient and the stocks are in equilibrium, which of the following statements is CORRECT? A B Required return 10% 12%Market price $25 $40Expected growth 7% 9%

A) These two stocks should have the same price.

B) These two stocks must have the same dividend yield.

C) These two stocks should have the same expected return.

D) These two stocks must have the same expected capital gains yield.

E) These two stocks must have the same expected year-end dividend.

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A lender estimates that the closing costs on a $165,000 home loan will be $6,187.50. the actual closing costs were 3.5% of the loan amount. determine if the closing costs were higher or lower than the estimate and by what percent? a. higher by 0.25% b. higher by 0.5% c. lower by 0.25% d. lower by 0.5% please select the best answer from the choices provided a b c d

Answers

Answer:

your answer will be c your welcome

seven toxic habits that drain your energy prevention

Answers

The toxic habits that drain your energy prevention are;

Pleasing others so badAlways been too self-critical. Keeping anger and resentment in your heart.

What are toxic habits?

In any form of living or any relationship, there are some habits that are known to be harmful to a person and it is one that can drain one's energy and  make one to have issues. They also include:

Over worrying or  overthinking about things.Foolish use of the social media.Irregular sleep pattern.Eating junk food.

Conclusively, getting rid of toxic habit will go a long way in improving your self and your relationship with others.

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In the activity, when na lost an e- it shrank and the cl+ grew in size. does that say anything about the location of the electron before and after it was transferred?

Answers

Since the electron that is lost is on the valence shell of sodium, the size of sodium will shrink while the size of chlorine will increase.

Ionic bonding

Ionic bonding is said  to occur when a  metal looses an electron to a nonmetal. The resulting compound is actually an ion pair.

For the formation of sodium chloride, a sodium atom looses an electron which is present on its valence shell while chlorine accepts this electrons into its valence shell as a result, the size of sodium will shrink while the size of chlorine will increase.

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Unit 11 volume & surface area homework 5 surface area of prisms & cylinders

Answers

The volume of the prism is the amount of space on the prism

The volume of the cylinder is 760 cubic units

How to determine the volume?

The question is incomplete.

So, we make use of the following parameters

Shape = CylinderRadius, r = 11Height, h = 2.

The volume of a cylinder is calculated using:

V = πr²h

Substitute known values in the above formula

V = 3.14 * 11² * 2

Evaluate the product

V = 759.88

Approximate

V = 760

Using the assumed values, the volume of the cylinder is 760 cubic units

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Saul paid off a loan with a simple interest rate of 4.7% in 9 months. what was the apr?

Answers

The annual percentage rate (APR) for Saul loan who paid off a loan with a simple interest rate of 4.7% in 9 months is 6.3%.

What is equivalent ratio?

Equivalent ratio is the ratio which is same in the value as the original ratio but the numerator and denominator is different for both the ratios.

Saul paid off a loan with a simple interest rate of 4.7% in 9 months. Here, the rate of interest is 4.7%. The time period is 9 months. Thus, the ratio for rate to month is,

[tex]r=\dfrac{4.7}{9}[/tex]

Let the annual percentage rate (APR) is x%. Thus, the rate in 12 months is,

[tex]\text{12 months - x\%}[/tex]

[tex]r=\dfrac{x}{12}[/tex]

Comparing both the ratios,

[tex]\dfrac{x}{12}=\dfrac{4.7}{9}\\x=\dfrac{4.7}{9}\times 12\\x\approx 6.3\%[/tex]

Hence, the annual percentage rate (APR) for Saul loan who paid off a loan with a simple interest rate of 4.7% in 9 months is 6.3%.

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The bollywood film industry is an important part of the culture of theater and arts in __________. a. india b. china c. korea d. japan

Answers

Answer:

India

Explanation:

coz bollywood is mainly from india /

Answer:

india

Explanation:

I took the test

A trademark is a sign, symbol, name, or short phrase that indicates the of a product or service.

Answers

A trademark is a sign, symbol, name, or short phrase that indicates the source of a given product and/or service.

What is a trademark?

A trademark refers to a sign, symbol, and/or specific character capable of distinguishing products or services.

The trademarks are fundamental for shaping identity in an enterprise and positioning different commercial products.

A trademark can be an effective manner to develop publicity to attract clients and thus generate utilities.

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Which sentences describe points that miguel should consider in the goal-setting process before he starts to invest?

Answers

The sentences which describe points that miguel should consider in the goal-setting process before he starts to invest are;

Miguel should consider an estimate of returns he desires from the investment.He should consider whether to invest in stocks or bonds.Decide on the type of industry to invest in.

What is investment?

An investment refers to the desired amount of returns a person expects by investing an amount by of money.

The complete question:

Which sentences describe points that Miguel should consider in the goal-setting process before he starts to invest?

Miguel plans to start investing in a few months. His friends advise him to set some financial goals. First, Miguel arrives at an estimate of the total returns that he wants from his investments. He is also trying to decide whether to invest only in stocks or only in bonds. He makes up his mind about the type of industries he wants to invest in. Eventually, he wants to use this amount to repay part of a home loan that he plans to take.

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Ray mn and ray ml are two sides of an angle. what is a name of this angle?

Answers

Answer: <NML

Explanation:

N is where the angle is starting while M and L are the lines that make up the Angle

Answer:

l

Explanation:

The ancient babylonians developed a method for calculating nonperfect squares by 1700 bce. complete the statements to demonstrate how to use this method to find the approximate value of .

Answers

Answer:

The general algebraic expression is used for evaluating the value of square root 5. The given value of  and the value of  are identical. So, the approximate value of  will be 2.236.

Explanation:

A rectangular tank that is with a square base and open top is to be constructed of sheet steel of a given thickness. find the dimensions of the tank with minimum weight.

Answers

The dimensions of the tank with minimum weight are; 26 ft by 26 ft by 13 ft.

How to minimize functions?

For minimum weight, it means that the surface area must be minimum.

Let the height be h and the lengths be x

Thus, the volume is;

x²h = 8788

Thus;

h = 8788/x²

Surface Area is;

A = x² + 4xh

A = x² + 35142/x

dA/dx = 2x - 35152/x²

When dA/dx = 0, we have;

2x - 35152/x² = 0

2x  =35152/x²

Thus;

2x³ = 35152

x³ = 17576

x = 26 ft

Thus;

h = 8788/x²

h = 8788/26²

h = 13 ft

Thus, the dimensions are 26 ft by 26 ft by 13 ft.

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A circle has a diameter of 26 units what is the area

Answers

Answer:

530.93 units squared

Explanation:

The formula for the area of a circle is pi*r^2. The radius is half the diameter. So, 26/2 = 13.

pi*13^2 = ?

pi*169 = 530.93

The area is 530.93 units squared.

Bosio inc.'s perpetual preferred stock sells for $120.00 per share, and it pays an $8.50 annual dividend. if the company were to sell a new preferred issue, it would incur a flotation cost of 4.00% of the price paid by investors. what is the company's cost of preferred stock for use in calculating the wacc?

Answers

The value of WACC from the given information is about 7.4%.

What is WACC?

WACC is defined as the weighted average cost of capital. It is the rate at which a firm is projected to pay all of its security holders on average to finance its assets.

The firm's cost of capital is frequently referred to as the WACC. It is important to note that the external market, not management, determines this.

The formula of WACC is:

[tex]\text{Weighted Average Cost of Capital (WACC)} = \dfrac{\text{Annual Dividend}}{\text{Sales price of Proffered Stock} - \text{Sales price} \times \text{FC}}[/tex]

According to the given information,

Annual Dividend = $8.50,

Sales price of Proffered Stock =$120.

Flotation Cost(FC) = 4%.

Now, putting the values in the formula of WACC,

[tex]\text{Weighted Average Cost of Capital (WACC)} = \dfrac{\text{Annual Dividend}}{\text{Sales price of Proffered Stock} - \text{Sales price} \times \text{FC}}\\\\\text{Weighted Average Cost of Capital (WACC)} =\dfrac{8.5}{\$120- (\$120 \times 4\%)}\\\\\text{Weighted Average Cost of Capital (WACC)} =0.074(Approx.)[/tex]

Then, the WACC in terms of percentage is 7.4%.

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What statement best describes what happens to light as it passes through water into a piece of glass?

Answers

The statement which best describes what happens to light is that its speed decreases, its wavelength becomes shorter and its frequency remains the same.

What is light?

Light refers to a form of electromagnetic waves that doesn't require any medium for its propagation.

According to the model of light wave, light experiences refraction when it passes through water into a piece of glass and this causes its speed to decrease, its wavelength to become shorter but its frequency would remain the same.

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A quality control engineer is testing the battery life of a new smartphone. the company is advertising that the battery lasts 242424 hours on a full charge, but the engineer suspects that the battery life is actually less than that. they take a random sample of 303030 of these phones to test h_0: \mu=24h 0 ​ :μ=24h, start subscript, 0, end subscript, colon, mu, equals, 24 hours versus h_\text{a}: \mu < 24h a ​ :μ<24h, start subscript, start text, a, end text, end subscript, colon, mu, is less than, 24 hours, where \muμmu is the mean battery life of these phones. the sample data had a mean of 212121 hours and a standard deviation of 161616 hours. these results produced a test statistic of t\approx-1.03t≈−1.03t, approximately equals, minus, 1, point, 03 and a p-value of approximately 0.1560.1560, point, 156. assuming the conditions for inference were met, what is an appropriate conclusion at the \alpha=0.10α=0.10alpha, equals, 0, point, 10 significance level?

Answers

The appropriate conclusion of the hypotheses is that; there is insufficient evidence to support the claim that the mean battery life not up to 24 hours.

What is the Conclusion of the Hypothesis?

We are given;

Null Hypothesis; H₀: μ = 24

Alternative Hypothesis; Hₐ: μ < 24

We are aslo given that;

Significance level; α = 0.10

test statistic; t = 1.03

p-value = 0.156

Now, we see that our p-value is greater than the significance value and as such since the alternative hypothesis is the claim we will fail to reject the null hypothesis and conclude that there is insufficient evidence to support the claim that the mean battery life not up to 24 hours.

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Explain how the data from the river samples showed that there was a problem with the water treatment plant.

Answers

The data from the river samples showed that there was a problem with the water treatment plant as the water treatment plant perform poorly.

Why did the plant perform poorly?

The water treatment plant were said to have not work properly as the data gotten from the river samples showed that  an issue is present  with the water treatment plant due to the fact that there was the presence of high amount of pollutants in the river sample.

Note that the presence of pollutants in any given water samples can make the water treatment plant not to do well,  as the presence of pollutants shows that there is inefficient water treatment.

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Read and choose the option with the irregular verb in the imperfect tense. comías con tu padrastro todos los días. ¿hablabas con tu padrastro todos los días? llamabas a tu padrastro todos los días. ¿veías a tu padrastro todos los días?

Answers

According to the context, the correct sentence with the irregular verb in the imperfect tense is ¿veías a tu padrastro todos los días?.

What is the imperfect tense?

It refers to actions with a certain duration in the past or that were carried out simultaneously with other actions.

As with other verb tenses, there are rules for conjugating verbs in the imperfect tense in Spanish, where the ending of the verb will change depending on the subject of the sentence and the original ending in the infinitive.

However, the verb ''ver'' has an irregular verb conjugation and is pronominal, so it will not follow the regular verb conjugation rules.

Therefore, we can conclude that according to the context, the correct sentence with the irregular verb in the imperfect tense is ¿veías a tu padrastro todos los días?.

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Answer:  ¿Veías a tu padrastro todos los días?

Explanation:  ¿Veías a tu padrastro todos los días?

Why does benvolio think that romeo should attend capulet's party

Answers

Answer:

Benvolio thinks that Romeo should go to the Capulet party, if only to see all of the beautiful girls. He should forget Rosaline and allow his eyes to wander freely. By giving liberty unto thine eyes.

Explanation:

D Romeo is a Montague, but Benvolio is a Capulet. THIS SET IS OFTEN IN FOLDERS WITH... An Introduction to Shakespeare and Romeo and Julie… An Introduction to Shakespeare and Romeo and Julie

Let ​f(x)=x2+6x+11​. what is the minimum value of the function?

Answers

Answer:

13/1

Explanation:

Name the two philippine theater groups that present original and adapted plays in filipino

Answers

Answer:

The two philippine theater groups that present original and adapted plays in filipino are as given below:-

Tanghalang AteneoTeatro Tomasino

Explanation:

#hope it helped!

What is the denominator of the simplified expression? 2 n

Answers

The expression [tex]\frac{2n}{6n + 4} * \frac{3n + 2}{3n - 2}[/tex] is a product expression

The denominator of the simplified fraction is 3n -2

How to determine the denominator?

The expression is given as;

[tex]\frac{2n}{6n + 4} * \frac{3n + 2}{3n - 2}[/tex]

Divide the first fraction by 2/2

[tex]\frac{n}{3n + 2} * \frac{3n + 2}{3n - 2}\\[/tex]

Evaluate the above product

[tex]\frac{n}{3n - 2}[/tex]

The above fraction is a simplified fraction of [tex]\frac{2n}{6n + 4} * \frac{3n + 2}{3n - 2}[/tex], and the denominator is 3n - 2

Hence, the denominator of the simplified fraction is 3n -2

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What is x, the height of the cylinder? 21 units 24 units 25 units 28 units

Answers

B 24 unitsAnswer:

Explanation:

Answer:

24 units

Explanation:

yw

A relation that assigns to each element x from a set of inputs or ________ exactly one element in a

Answers

The complete sentence is:

"A relation that assigns to each element x from a set of inputs or domain exactly one element in a..."

How to complete the sentence?

First, let's describe what a mathematical relation is.

A relation between two variables maps the element from the set of inputs, also called the domain, into the set of outputs, also called the range.

So we have something like:

y = h(x)

Where the relation h() is mapping the element x into the element y.

Now, the sentence that we need to complete is:

"A relation that assigns to each element x from a set of inputs or ________ exactly one element in a..."

So we need a synonym for the set of inputs, which we already know that is also called the domain, so the complete sentence would be:

"A relation that assigns to each element x from a set of inputs or domain exactly one element in a..."

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Lisa cut out 36 paper snowflakes to decorate her room.Then her brother gave her 28 paper snowflakes that he had made.If she chooses to use only half of the snowflakes to decorate, how many willshe have left over? Why do metals tend to form cations and nonmetals tend to form anions? What is the length of side s of the square shown below? Use the associative property to rewrite the expression: -6+(3+7) A consumer charges a $46.92 purchase on a credit card. the card has a daily interest rate of 0.039%. if the consumer pays off the balance at the end of 30 days, how much in interest will be paid for the purchase? a. $0.06 b. $0.18 c. $0.55 d. $5.49 please select the best answer from the choices provided. a b c d Check all of the clues that would help someoneidentify this key term.the title or section headingthe first or last sentencea repeated word or phrasea signal word or phrase What is NOT an example of a way in which the release of greenhouse gases in one ecosystem canaffect bird migration in another ecosystem.A. Birds may change the time of year in which they migrate.B. Birds may change the location of their migration if the temperature ranges at either end of their migrationroute are no longer suitable.C. Birds may not migrate at all if they can find an area in which the temperature range is more suitablethroughout the year.D. Birds generally migrate to the sources of pollution what is the answer to this problem If John has 5 pets and got 26 more pets, how many pets does john have? Question 1 options:13.5121311 4Is this a function?Is this a function?YesNoCannot bedeterminedA YesB) NoCannot be determined A house is $100,000, a computer is $2,000, and a car is $20,000. In this context, money is principally functioning as a Whats the surface area of this prism? What is the perimeter of triangle ACD?Will mark brainlyest!!! 15 x 18 + 12 3 + 91. 15 x 18 =270 2. 270 + 12 divided by 3 + 9 3. 12 divided by 3 = 4 4. 270 + 3 + 9 5. 270 + 3= 273 6. 273 + 9 = 282 The answer is 282. Canada consists of distinct groups such as Anglophones, Francophones, and indigenous Canadians. This is an example of ________. List three words that have multiple meanings Buster was given this expression and asked to determine whether the answer is greater than or less than 1. (9.763 108) (1.56 1013) how can buster tell without fully performing the calculations? buster knows the answer is more than 1, because he can add the exponents to see that the solution will have an exponent of 21. buster can tell the answer is less than 1, because he can subtract the exponents to see that the solution will have an exponent of 5. buster knows the answer is more than 1, because 9.763 1.56 is more than 1. buster cannot answer the question without a calculator. what Role did women play in absence of men in 1990s 50 paise 1000 give your answer in rupees