# What is the opt-out system in organ donation?

**SCIENCE**

**What is the opt-out system in organ donation?**

When a person has to expressly register himself to become an organ donor, it is known as opt- in organ donor. Here it is essential for the person to provide his consent for his organs to be used…

**SCIENCE**

**Does the Sun also rotate like the Earth?**

Well, yes and no. It rotates, but not like the Earth does. The Earth has a solid surface and rotates on its axis at a consistent speed. The Sun also rotates, but differentially, which means it…

1 educator answer

**MATH**

**How many 5-digit numbers are there that include the digit 5 and exclude the digit 8? Explain your…**

You require five digit numbers that include 5 and exclude 8. Now the number of 5 digit numbers is 99999 – 9999 = 90000. As the numbers need to have a 5 (though there can be more than 1 instance)…

**LAW AND POLITICS**

**How can I get out of a timeshare contract ?i cancelled on the 6th day when it should have been…**

When it comes to contracts, it all depends on what they say. You can write a contract for nearly anything, and as long as both parties sign it, it is a binding agreement (providing it is for…

1 educator answer

**THE KITE RUNNER**

**What would be a good opening sentence for an essay on The Kite Runner?I have to write an essay…**

This is of course a very open question because it depends a lot on what particular slant you are going to approach your essay question with. Of course, the most important thing to do is to think of…

3 educator answers

**MATH**

**If 4x+ay=0, 5x+2y=0, bx+cy=0 and dx+4y=0 are the sides of a square find a, b, c and d.**

We pressume that 4x+ay = 0……….(1) 5x+2y = 0………..(2) bx+cy = 0………..(3) dx+4y = 0 ………(4) are the sides of a square. Since there is no constant terms in any of the 4…

**NO ONE’S A MYSTERY**

**I am having difficulty to find an appropriate topic for an essay on “No One’s a Mystery,” any clues?**

In writing your essay on “No One’s a Mystery,” I would first suggest that you pay attention to this very short story’s title. In studying the title, a reader can often find direction in discerning…

1 educator answer

**MATH**

**Using calculus prove the relation between distance, time, speed and acceleration**

We presume s(t) = A+Bt+Ct^2 , where s is the distance travelled by a particle in time t with a starting velocity u and final velocity v and acceleration a. To find the relation between s,a,u and…

**BUSINESS**

**What is the job of an underwriter?**

Underwriting has different meanings based on the business we are talk about. Generally underwriting is used to define the management of risk in financial operations. In banking it refers to the…

**MATH**

**What is second derivative of sin [( cos 3x+2)]?**

Let f(x) = sin[cos(3x+2)] . To find the second derivative of f(x). solution: We know f(g(x))’ = {f'(g)}g'(x) by chain rule. Let u(x) = cos(3x+2). Then d/dxcos(3x+2) = -{sin(3x+2)}(3x+2)’ =…

**SCIENCE**

**Why does the skin feel cool when a deodorant is sprayed?**

When a deodorant is sprayed on the body, the spirit or some similar solvent used in it evaporates very fast due to its low boiling point. In this process of evaporation, the deodorant needs latent…

**LAW AND POLITICS**

**What are the legal rights of a child on the property of his biological father if the father was…**

The Equal Protection Clause of the Fourteenth Amendment to the US Constitution gives illegitimate children, or those born of persons who are not formally married, the same rights to inherit…

**MATH**

**Using calculus prove that the square has the greatest area for the same perimeter when a…**

Here we have to prove that the square has the greatest area for the same perimeter when a rectangle is considered. So the perimeter P can be taken to be a constant P. Use a variable x for the…

**MATH**

**What is the equation of the line tangential to the curve formed by a quadratic equation?**

For a curve, the derivative at any point is the slope of the line that is tangential at that point. Let’s take a standard quadratic equation: y = ax^2+ bx + c. dy/ dx = 2ax+b. The exact value of…

**HISTORY**

**Identify and describe one major geographical feature of ancient Egyptian civilization.World History**

The most obvious and dominant geographic feature of ancient Egyptian civilization (as well as today in Egypt) to me would be the Nile River. It’s the world’s longest river, stretching 2700 miles…

2 educator answers

**THE PIT AND THE PENDULUM**

**What is the meaning of the quote from Edgar Allan Poe’s “The Pit and the Pendulum” listed…**

But if the impressions of what I have termed the first stage, are not, at will, recalled, yet, after long interval, do they not come unbidden while we marvel whence they come? This quote is…

1 educator answer

**MATH**

**Is -5 a rational or irrational?**

A rational number is a real number that can be expressed in the form of fraction p/q, where both p and q are any integers. These integers can be either positive or negative. However, q cannot be…

**MATH**

(2x)^4 =-18 To find all the roots: Solution: (2x)^4=18 16x^4 = 16. Divide by 8: x^4= 18/16 = 9/8. Take square root : x^2 = sqrt(9/8) or sqrt(-9/8) Again take sqare root. x = +(9/8)^(1/4) Or x =…

**LAW AND POLITICS**

**Why are laws in Muslim countries are still so patriarchal? Why are laws in Muslim countries are…**

This question would be best placed in the discussion section where you will get many and varied answers to your question. However, my belief is that the founders of Islam were operating in Old…

3 educator answers

**FRANKENSTEIN**

**Where does Victor Frankenstein go wrong in the book in your opinons, and why do think this…**

Certainly the pivotal moment in Victor’s life was when he elected to allow his ego to take the best of him and, instead of admiring the sciences of physics, biology, and chemistry as fields of…

3 educator answers

**SCIENCE**

**What is the relationship between hemoglobin and Po2? How do temperature, H+, Pco2, and BPG…**

Generally as the PaO2 increases the oxygen saturation of the the hemaglobin molecule increases. This is best illustrated by looking at the oxy-hemoglobin dissociation curve. Increases in…

**HISTORY**

**What is your opinion of progressivism?What is your opinion of progressivism?**

In my opinion, progressivism has made the United States a better place to live. Progressives worked to solve the many problems the country faced in the late 1800’s and early 1900’s. If one…

6 educator answers

**BIOLOGY**

**In what ways does the complement system augment antibody- mediated immune responses?**

The complement system is one part of our immune system that is completely developed right from when we are born. Unlike the rest of our immune system which develops the capability to protect us as…

1 educator answer

**LUNGS**

**How does alveolar surface tension affect pulmonary ventilation?**

Alveolar surface tension is regulated by the spread of pulmonary surfactants, a lipid and protein mix that keeps the surface tension of the alveoli consistent across the lungs. Because oxygen…

1 educator answer

**PAUL’S CASE**

**What is the most important element of fiction in “Paul’s Case”? I need help, I am not sure what…**

I would agree with you. For Willa Cather’s short story “Plaul’s Case,” character really does seem like the most important element. The storyline or plot can probably be summarized in just a…

6 educator answers

**MATH**

**What multiplied by what gives you 1,050?**

Do you know how to factor a number? That would be the easiest way to see all the combinations of numbers you can multiply together to get 1050. I think the most systematic way to factor is to start…

2 educator answers

**TO HIS COY MISTRESS**

**What is the change in tone after line 20 in “To His Coy Mistress”?**

You have correctly identified a key turning point in the poem. Remember what this poem is all about: the speaker is trying to persuade his audience to love him now and not to be “coy.” The speaker…

1 educator answer

**WILLIAM BLAKE**

**What is the theme of symmetry (or duality) in Blake’s poem “The Tiger”?**

This is of course perhaps Blake’s best known poem, and it is rules by symmetry – between stanzas, between lines and within lines. The most important question to think of when approaching this poem…

1 educator answer

**HARLEM**

Tone is generally determined by several factors. In Langston Hughes’s poem “Harlem,” tone can best be determined by his use of imagery. This work has a simple structure: it is a series of images…

1 educator answer

**SLAUGHTERHOUSE-FIVE**

**In Slaughterhouse-Five, what is the purpose of the animal fur around Billy’s coat collar?**

The fur collar is part of what makes Billy’s outfit so ridiculous. Everyone else is given a military coat, heavy duty and without frills. Not only is Billy’s jacket less useful for warmth, it is…

1 educator answer

**SLAUGHTERHOUSE-FIVE**

**Why does Vonnegut start some of his chapters with “listen”?**

In this Slaughterhouse Five , Vonnegut uses certain conversational elements to establish a narrative voice that is diffident, intimate, honest, baffled and humble. Opening some chapters (chapter 2…

1 educator answer

**SCIENCE**

**How do you draw a Lewis Dot Diagram? How do you draw one for both atoms and ions?**

Drawing the Lewis Dot Diagram is relatively easy: First, you have to identify the number of valence electrons of the element that you wish to draw a diagram for. Then represent this number by dots…

**MATH**

**What is the formula if the product of the digits is 36 and the number is divisible by 7. Can’t…**

I would think the easiest way to figure out the answer is just to look at multiples of 7, till you get to one where the product of the digits is 36. So….7×1=7. 7×2=14, but 1×4 does not equal 36….

2 educator answers

**ENOTES EDUCATORS GROUP**

**How did you discover eNotes?Hi all! We’re taking an informal survey to find out how you first…**

Ah, memories, as Maggie Smith says in Curtain Call. How did I find eNotes? Ah yes. It was through a Google search for an academic question–or for a tutoring site–that I first came upon eNotes….

9 educator answers

**STOPPING BY WOODS ON A SNOWY EVENING**

**Where do you think the poem’s speaker was going in the poem “Stopping by Woods on a Snowy…**

It’s impossible to know precisely where the speaker is heading. We gather from his reference to “promises to keep” that he is running some kind of errand. We cannot even be sure if he is heading…

3 educator answers

**THE VIEW FROM SATURDAY**

**What is the setting of The View From Saturday?**

The academic bowl which serves as the heart of the plot of this story takes place at Epiphany Middle School in Epiphany, NY, where paraplegic teacher Mrs. Olinski chooses four students from her 6th…

1 educator answer

**FRANKENSTEIN**

**How might Victor and the creature’s relationship be interpreted as an inverted creation…**

I don’t know if it can, but there’s one possibility I can think of. In the traditional/real creation story, God creates out of love and we reject God when we sin. In “Frankenstein,” Victor…

1 educator answer

**HISTORY**

**What were Voltaire’s major beliefs during the Scientific Revolution? Since I’m in Global History…**

Voltaire is the pen name for Francois-Marie Arouet who was born in France in 1694. Voltaire was an Enlightenment thinker who was a strong supporter of freedom of thought and expression and spoke…

1 educator answer

**LAW AND POLITICS**

**How would you specifically determine whether community policing efforts are working?**

This is really very hard to accurately determine. The most likely way to determine whether these efforts are working would be to look at crime rates. You would need to look at the crime rates in…

1 educator answer

**THE AUTOBIOGRAPHY OF MALCOLM X**

**Does Malcolm X say why he wrote the book and his purpose for writing it?**

I would pay attention to the last chapters of the Autobiography. Of particular note would be the chapter, “1965.” Examining this chapter helps to bring out a particular reason that could be used…

1 educator answer

**OTHELLO**

**Critical Analysis?Student of MA English**

You don’t give much to go on here. It’s hard to discern if you aren’t sure what critical analysis is, or you don’t know where to begin with an analysis of Othello. I will provide some Enotes links…

1 educator answer

**REFERENCE**

**In how many languages can the greeting “Hello” be said?I’m mainly looking for a number; the words…**

The word “hello” can be easily understood by speakers of virtually every language on the planet, it is probably the most common word after “okay”. It is commonly used in all English-speaking…

1 educator answer

**HISTORY**

**How did having colonies help England?How did having colonies help England?**

Having colonies helped England in a few main ways: It gave them a safety valve for excess population. Instead of being poor and angry in England, some people could head for the colonies. This…

5 educator answers

**THE PLAYBOY OF THE WESTERN WORLD**

**Discuss how Synge’s use’s tragedy and comedy in this play to show how complex human beings are.**

In J.M. Synge’s uses of tragedy and comedy in Playboy of the Western World, we are able to see the essence of the human condition: tragically we lose sight of what is acceptable by social (and even…

1 educator answer

**LAW AND POLITICS**

**Which section of the British colonies had direct democracy and which section had a representative…**

A direct democracy involves the entire community or tribe being involved in every decision, with majority rule in effect. While none of the colonial government truly had this in effect, the…

1 educator answer

**MATH**

**F(x)= ( 1 – 2/x) ^x Use a table of values of f(x) to estimate the limit. (Round the answer to…**

F(x) = lt x–> infinity {1-2/x}^x To solve the problem through a table of values. We know that Lt (1-2/x)^x = {(x-2)/x}^x We take x = 10, 100,1000, 10000. Then, F(10) = (8/10)^10 =…

**HISTORY**

**Was there any bad blood between American GIs and European civilians in WWII?Was there any bad…**

Of course, there were surely instances of bad blood since there will be instances any time that many people are put somewhere. However, the relationship between American soldiers and European…

5 educator answers

**TREASURE ISLAND**

**What are some quotes from Treasure Island that relate to the settings?**

Setting comprises time, place, and physical environment of the locale or locales of where the action of a story occurs. There may be more than one setting in a short story or novel, although…

1 educator answer

**THE OPEN WINDOW**

**What precise function has the open window in “The Open Window”?**

The open window is what Vera seizes upon to trick the poor unsuspecting Framton Nuttel when she is left to entertain him by herself while her aunt is preparing herself. Note how she uses it to…

2 educator answers

**THE LOVE SONG OF J. ALFRED PRUFROCK**

**‘Let us go then you and I …’ – who is the ‘you’ in this line ?’Let us go then you and I …’ -…**

This is one of the great mysteries and frequent topics of debate among critics of T.S. Eliot’s poem. Some people believe Profrock is speaking directly to the reader here, literally involving the…