cos(sin−1(x))=1−x2−−−−−√cos(sin-1(x))=1-x2 Verfiy the identity.
- SCIENCE
Consider the following reaction and calculate the equilibrium partial pressure of BrCl.:…
The equilibrium constant expression for this reaction is: Kp=PBrCl(PBr2)(PCl2)Kp=PBrCl(PBr2)(PCl2) Initial partial pressures are: BrCl = 0 Br2 = 780 torr Cl2 = 730 torr Equilibrium partial…
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- SCIENCE
A polar bond is defined as a type of covalent bond between two atoms in which electrons are shared unequally. The unequal sharing of electrons is due to electronegativity differences….
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- SOCIAL SCIENCES
How do you write an analysis of a cartoon? 1 image
The first thing you should do is to check whether your instructor has given you any sort of a rubric for how to analyze a cartoon. If you have such a thing, follow it so that your analysis will…
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- HISTORY
What problem did Barack Obama encounter in the Altgeld Gardens project?
The Altgeld Gardens are a housing project in Chicago that were built during World War II to furnish housing for black veterans returning from the war. In the 1980’s the projects were among the…
3 educator answers
- SCIENCE
What are secondary memory devices?
Hello! By definition of the term, primary memory is that memory which the processor can access directly. It is also called RAM. It is volatile (empties when electricity is switched off). In…
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- SCIENCE
Why Anaerobic bacteria dominates the microbial population in the benthic zone?
The benthic zone is the region of sea (or ocean) that includes the topmost sediment layer and some water layer over it. This ecological zone is dominated by anaerobic bacteria. This region is…
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- HEALTH
I need help writing an op-ed that supports one proposed policy related to the public health issue…
If your instructor is assigning you an “op-ed” piece, then you need to write in an engaging style for a popular audience. This means that although you do need to do research and find authoritative…
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- ANIMAL FARM
What is the main point of the novel Animal Farm?
The main point of Animal Farm is about the nature of power. At first, the revolution had noble intentions. The communist ideals, seen in the seven commandments, sound great in theory. However, in…
1 educator answer
- SCIENCE
What does it mean when a wolf touches another wolf’s nose with theirs?
“Nose nudge” can be one of two kinds of displays. It can be a friendly gesture used as a gentle greeting. It can also be a display of submissive behavior among wolves. There are also two display…
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- THE MASQUE OF THE RED DEATH
In Edgar Allan Poe’s “The Masque of the Red Death,” what is one unusual aspect of the Prince’s…
One unusual aspect of the seven-room suite within the main living quarters of Prince Prospero’s castle, in addition to the fact that each room was adorned in a different color, was their unique and…
1 educator answer
- HENRY HOWARD, EARL OF SURREY
What are the figures of speech in “Description of Spring” by Henry Howard, the Earl of Surrey?
The term “figure of speech” may be applied to figurative language terms such as metaphor, simile, personification, hyperbole, idiom, and euphemism. The common definition of a figure of speech is…
- HISTORY
What led the American colonists to revolt against the British?
There were many factors that led the American colonists to revolt against the British. One factor was that the British were passing laws the colonists didn’t want or like. The Proclamation of…
1 educator answer
- TO KILL A MOCKINGBIRD
In To Kill a Mockingbird, what quotes show that the children, Scout and Jem, have hope that their…
At the end of Chapter 17, Jem understands that Atticus has been able to suggest that Bob Ewell is the one who had beaten Mayella. Scout realizes this as well, but she thinks that Tom Robinson is…
1 educator answer
- MEDICARE AND MEDICAID
What are Medicare and Medicaid?
Medicare and Medicaid are both public health care programs in the United States which provide free or inexpensive subsidized health care to populations in need. Medicare is a program aimed mainly…
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- GREAT EXPECTATIONS
In chapter 12, what does Pip worry about before he returns to Miss Havisham’s?
Pip is worried that he is going to get in trouble for fighting with the pale young gentleman. Pip is concerned when he goes back to Miss Havisham that he is going to get in trouble for fighting…
1 educator answer
- HISTORY
What role did Genghis Khan have in the Mughal Empire? 1 image
The Mughal Empire was an empire in India and Afghanistan that was of Turko-Mongol descent. The dynasty ruled from 1527-1707. The first Mughal emperor was Zahiruddin Muhammad Babur. Babur had a…
1 educator answer
- HISTORY
What were some cultural differences between the Mughal Empire and the Muslim culture in the…
The major difference between the Mughal Empire and the practice of Islam in the Middle East was the degree of integration and tolerance witnessed in India. The Mughal emperors did not force Hindus…
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- HISTORY
What were some of the obstacles in building the Taj Mahal and how did this affect the reign of…
One of the obstacles in building the Taj Mahal was the nature of the project itself. Intended as a tribute to the untimely death of his wife Mumtaz Mahal, the building had to be memorable in design…
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- BY THE WATERS OF BABYLON
In the story “By the Waters of Babylon,” at what point do readers begin to figure out what the…
I am not that good at figuring out those kinds of hints and details early in a story. Twists always get me by surprise. “By the Waters of Babylon” was not that much different for me either….
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- ORANGES
What is a strong theme in the poem, “Oranges,” by Gary Soto?
The theme is commonly understood as “the main idea of a poem or story.” This one is a bit complex because it’s commonly understood that these main ideas can usually be expressed in one word. The…
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- SCIENCE
Magnesium chloride is a high melting point solid; aluminium chloride is a solid which sublimes…
The melting and boiling points of a compound are related to its intermolecular attractions. Molecules that are more strongly attracted require more energy to melt or vaporize. Silicon…
1 educator answer
- TO KILL A MOCKINGBIRD
Describe how Tom Robinson and Boo Radley are “mockingbirds” and explain how their characters…
Throughout the novel, mockingbirds symbolize innocent beings. At the beginning of Chapter 10, Atticus tells his children that it is a sin to kill a mockingbird. Maudie elaborates on why it is…
1 educator answer
- SCIENCE
How do you determine frequency if a microwave is 6.0 cm in length?
Microwaves are electromagnetic waves, whose frequency is between 300 megahertz (MHz) and 300 gigahertz (GHz) and a wavelength in the range of 1 m to 1 mm; therefore the microwave range is included…
1 educator answer
- TO KILL A MOCKINGBIRD
What passages from Harper Lee’s To Kill a Mockingbird describe the characters Walter, Scout,…
In Harper Lee’s To Kill a Mockingbird, one thing we learn about the Cunninghams, like Walter Jr. and Walter Sr., is that, though the Cunninghams may be poor, they have a very strong sense of pride….
2 educator answers
- A RED, RED ROSE
What evidence does the speaker give of the depth and the constancy of his love?
Ah…Robert Graves! He wrote poetry for the oldest and possibly the most respected reason in the book: to woo women. He wrote poetry / songs to play at the pub. He was Irish, so some of the words…
1 educator answer
- SAKI
What is the rising action of “The Storyteller” by Saki?
As a literary device, the rising action comprises all decisions, characters’ flaws and background circumstances that together create turns and twists leading to a climax. Therefore, this is not…
1 educator answer
- HISTORY
What are the elected officials in Rome called?
Ancient Rome had numerous elected offices. Elected officials were called magistrates, but there are many levels and titles within the office of magistrate.Positions of Roman Republic included (from…
1 educator answer
- HISTORY
Who was Benjamin Franklin and what did he do?
Benjamin Franklin was one of The United States’ most important Founding Fathers, as well as one of the foremost early American inventors. Franklin helped inspire support for the American…
1 educator answer
- REFERENCE
There are six types of shoplifting prevention and detection techniques. Name and briefly describe…
Your question deals with two things: shoplifting detection and shoplifting prevention. As far as shoplifting detection is concerned, typical shoplifters will do the following: They will carry their…
1 educator answer
- THE ADVENTURE OF THE SPECKLED BAND
The only person fulfilling the role of a detective in Sir Arthur Conan Doyle’s “The Speckled Band” is his most famous character, Mr. Sherlock Holmes. Mr. Holmes is a consulting detective; that is,…
1 educator answer
- SCIENCE
How is the water table connected to the soil?
The water table is the level in the ground to which the water sinks as a result of the earths gravitational attraction. At some point underground, there is an impermeable layer of rock or soil,…
1 educator answer
- ROMEO AND JULIET
In Romeo and Juliet, Gregory and Sampson work for which family?
Sampson and Gregory, who appear in Act 1, Scene 1, are, according to the italicized introduction to the chapter, “of the house of Capulet.” They are not family members; rather, they are servants…
1 educator answer
- THE CALL OF THE WILD
What does John do to the man beating Buck?
In The Call of the Wild, chapter 5, it is clear that Buck’s new masters–most notably Hal–are incompetent. They overwork and underfeed their dogs, who grow increasingly weaker. However, Hal and…
1 educator answer
- DÉSIRÉE’S BABY
What is a summary of Desiree’s Baby?
Published in 1893, the short story “Desiree’s Baby” focuses on the complicated and difficult to define issue of race. The main character is Desiree Valmonde, who is the foundling child of a wealthy…
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- HISTORY
What was the pass or region in Belgium that Germany used to invade France?
I believe that you are thinking about the Ardennes Forest, which is a region of forest and rough topography that is mainly in Belgium and Luxembourg (but is also partly in Germany and France)….
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- JOHN DONNE’S HOLY SONNETS
In Sonnet 17, how does John Donne present loss of a loved one throughout the poem?
In Sonnet 17, the speaker talks about the loss of his loved one (perhaps his/Donne’s wife). He says she has “paid her last debt to Nature” and this means she has died. Evidently, she has died young…
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- BEOWULF
Compare and contrast Beowulf, Sir Gawain and the Green Knight?
Before I looked at your attachment, the compare/contrast ideas that sprang to my mind were the similarities in how the verse is written: They both use alliteration–repetition of (usually)…
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- LITERATURE
What is the theme of “Little Red Riding Hood?”
The themes we identify in this text will depend, to some extent, on how literally we understand the story (as compared to how metaphorically we might read it). Taking the story as an allegory, the…
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- SOCIAL SCIENCES
What was the main reason that the colonists were motivated to change their government after the…
The events of the Boston Massacre motivated the colonists to change their government. Up to this time, colonial protests were never met by violent responses by the British. In some instances, the…
1 educator answer
- NIGHT
What is Eliezar’s new “name” when he arrives at the concentration camp in Night by Elie Wiesel?
In Night by Elie Wiesel, Elie and his family and friends are taken to Auschwitz, a death camp in Poland. There, the Jews and other prisoners are stripped of all their belongings including their…
1 educator answer
- TRIFLES
Which innocuous, everyday details add up to murder in the play Trifles?
There are several innocuous details in the kitchen of the desolate farmhouse that suggest there was something that bothered Mrs. Wright.Here are some of these details: When Mr. Hale stopped on his…
1 educator answer
- MACBETH
what two countries serve as the setting for Macbeth?
Two countries that serve as the setting of Macbeth are Scotland and England. The vast majority of the play (all but one scene) occurs in various places located in Scotland. Inverness, Glamis,…
1 educator answer
- THE YOUNGEST DAUGHTER
Why is there an indent in the first line of the second stanza of Cathy Song’s, “The Youngest…
The indent signals a change, like a paragraph change would. The first stanza of the poem is background information about the mother and daughter. “The sky has been dark / for many years” is…
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- THE CASK OF AMONTILLADO
In “The Cask of Amontillado”, what specific steps does Montresor take to ensure that his plan works?
Montresor carefully plans his murder, because he says that he must “punish with impunity” – meaning that he must take his time, not allow emotion to overtake his judgment, and commit the murder in…
1 educator answer
- OEDIPUS REX
Why does Oedipus think Creon is behind Tiresias’s comments? How does Creon react to Oedipus?
The key to understanding the relationship between Creon and Oedipus is also the reason why the title of Sophocles’ play should be translated as “Oedipus the Tyrant” rather than “Oedipus Rex” (Latin…
1 educator answer
- FAHRENHEIT 451
What is the destination of the alarm on the first night Montag returns to work at the firehouse?
After Montag returns to the firehouse, the story has arrived at a point where Beatty, the fire captain, suspects Montag is a traitor – that Montag himself may be harboring books. Then someone -…
- MATH
tan(cos−1(x+12))=4−(x+1)2−−−−−−−−−−√x+1tan(cos-1(x+12))=4-(x+1)2x+1 Verfiy the identity.
You need to rremember that tan2θ+1=1cos2θtan2θ+1=1cos2θ , hence, replacing cos−1(x+12)cos-1(x+12) by αα , yields: cos−1(x+12)=α⇒cos(cos−1(x+12))=cosαcos-1(x+12)=α⇒cos(cos-1(x+12))=cosα…
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- MATH
tan(sin−1(x−14))=x−116−(x−1)2−−−−−−−−−−−√tan(sin-1(x-14))=x-116-(x-1)2 Verfiy the identity.
For sin−1(x−14)sin-1(x-14) to have sense, (x-1)/4 must be in [-1, 1]. In this case, sin−1(x−14)sin-1(x-14) is an angle y in [−π2,π2][-π2,π2] such that sin(y) = (x-1)/4. For those angles cos(y)≥0cos(y)≥0…
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- MATH
cos(sin−1(x))=1−x2−−−−−√cos(sin-1(x))=1-x2 Verfiy the identity.
For both sides to have sense, x must be in [-1, 1]. For such x’es, sin−1(x)sin-1(x) is the angle y in [−π2,π2][-π2,π2] such that sin(y)=x.sin(y)=x. But cos2(y)+sin2(y)=1,cos2(y)+sin2(y)=1, so
1 educator answer
- MATH
tan(sin−1(x))=x1−x2−−−−−√tan(sin-1(x))=x1-x2 Verfiy the identity.
For both sides to have sense, x must be in [-1, 1]. For those x’es sin−1(x)sin-1(x) is the angle y in [−π2,π2][-π2,π2] such that sin(y)=x. cos is nonnegative on [−π2,π2],[-π2,π2], so
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