Find dy/dx by implicit differentiation. x^2-5xy+3y^2=7.

x^2 - 5xy + 3y^2
= 7

We need to differentiate the equation with respect to x.

==> dy/dx( x^2 - 5xy + 3y^2 ) = dy/dx ( 7)

==> dy/dx (x^2) - 5
dy/dx ( xy) + dy/dx ( 3y^2) = dy/dx ( 7).

We will differentiate with respect
to x.

==> 2x - 5 ( 1*y + xy' ) + 6yy' = 0

==> 2x -
5y - 5xy'+ 6yy' = 0

Now we will combine the terms with y' on the left
side.

==>  6yy' - 5xy' = 5y - 2x

Now we will factor
y'.

==> y'*( 6y - 5x ) = 5y-2x

Now we will divide by
(6y-5x).

==> y' = (5y-2x)/(6y-5x)

In the book In Cold Blood, why was Perry convicted of premeditated murder? When does the text mention his wanting to kill the Clutter family?

cmslack

tells the tale of a Kansas family that was brutally murdered for
what, at the time, seemed like no reason at all. Late at night on November 15, 1959, two
ex-convicts Richard Hickock and Perry Smith entered the house of the Clutter family with the
intentions to steal a safe that was believed to be full of money. A cellmate had told the two
about the wealthy family and the safe when they were in prison (Buchanan, 2011).

After entering the house under a cloak of darkness, neither Richard nor Perry could
locate the safe. During the search, they woke Herb. At that time, Herb tried to give the
intruders what money he had in hopes that they would leave and not hurt his family. Sadly, that
did not stop the urge to find the safe, and after searching for it again, the two suspects woke
up the rest of the family (Buchanan, 2011). That was when things started to go from a home
invasion scene to a murder scene.

The family members were separated into
different rooms, bound, all but one...

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Please evaluate my answer to this question: What are your expections from your teacher? We need teacher on whom we can trust , communicate with &...

Absolutely!
 These characteristics must be in place before anything else occurs.  These are basic to
establishing a good rapport with students and anin which students feel comfortable enough to
express themselves and therefore learn.  But of course these are just starters.  You might
expect that your teacher has mastery over the material; that your teacher is skilled enough to
provide different learning experiences for different kinds of learners; that he/she is
conscientious enough to prepare lessons that not only engage but that also promote learning,
mastery and independence;that appropriate and timely feedback is provided for student work; that
students are well prepared for the next level of learning and can implement skills they learned
in class in a broader context.

Situational Irony In The Cask Of Amontillado

Verbal is the intentional use of words to mean something
different from what the character actually says. Throughout the short story, Montresor
continually uses verbal irony during his conversations with Fortunato in order to encourage
Fortunato to follow him down into his family's catacombs. 

• "My friend, no; I will not impose upon your good nature" (Poe,
  2).
• When Fortunato makes a toast, Montresor responds by saying, "And I
  to your long life" (Poe, 3).

Situational
irony is a discrepancy between what is expected to happen and what actually
happens. The short story takes place during carnival season, which is generally happy,
fun-filled time. However, Montresor plans and executes a horrific murder during the festive,
joyful time.

Dramatic irony is when the audience
is aware of something that the characters are not. Throughout the short story, the audience is
aware of Montresors evil intentions to harm Fortunato the entire time. However, Fortunato is
unaware that he is following...

href="http://typesofirony.com/the-3-types-of-irony/">http://typesofirony.com/the-3-types-of-irony/

What does Victor Frankensteins relationship with Elizabeth tell you about his values and personality in Mary Shelley's Frankenstein?

claims
to love Elizabeth, but he has a rather funny way of showing it. Though there's undoubtedly some
affection on Victor's part, there's a lack of real depth to his feelings toward his adopted
cousin. Surely, we might think, ifreally did love Elizabeth as he says he does, then he wouldn't
put her life at risk by creating .

Victor kind of lets the cat out of the
bag regarding his true feelings when he candidly tells us that he looked upon Elizabeth as his
own. This gives the impression that Elizabeth is a more of a possession, a piece of property, to
Victor than she is a loving companion. Such an attitude is perfectly in keeping with Victor's
value system, in which those around him are objects to be studied, measured, and manipulated
rather than valued in their...

How is Young Goodman Brown changed by his experience in the forest? Does the narrator endorse Brown's unwillingness to trust anyone?

When Goodman Brown
returns to the village on the morning after the witches' Sabbath, he is very changed. He used to
believe that his friends and loved ones were good people with good morals, but now he thinks
that they are all false and two-faced. He no longer trusts the minister or the deacon, and when
walking past the "good old minister" he "shrank from the venerable saint, as if
to avoid an anathema." To him, the men he used to think of as so holy and good now seem
wicked and cursed.

Likewise, when he sees his lovely wife, Faith, he
"looked sternly and sadly into her face, and passed on without a greeting." He can no
longer feel comfortable with her and shrinks away, just as he does from the minister. He no
longer believes that these are godly people, and he cannot trust their appearance as
such.

When he dies, Goodman Brown's neighbors "carved no hopeful verse
upon his tombstone; for his dying hour was gloom." He had become a distrustful and
miserable cynic by the time of his death.

I do not believe the narrator
endorses Brown's unwillingness to trust. Brown had gone into the forest to meet the devil, just
as all the others had. He is surprised to learn that his father and grandfather, the minister
and deacon, and all his neighbors and friends are sinners, but he is a sinner too. Brown is no
better or more trustworthy than any of the others, so what right does he have to judge others
for curating similarly deceptive appearances of sinlessness? The narrator does not describe
Brown sympathetically.

Relationship between Indus valley civilization and other valley civilization

The Indus
Valley Civilization (IVC) is considered one of the three cradles of early civilization in the
Eastern Hemisphere, alongside Ancient Egypt and Mesopotamia. All three of these civilizations
flourished during the Bronze Age--a time characterized by bronze craftsmanship and early urban
development (falling chronologically after the Stone Age and before the Iron Age). 

All three of these early civilizations were settled around a major river,
and...

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