Answer:
(algebra) is the answer please like it
Find the directional derivative of at the point (-2, -3) in the direction .
The gradient of f is :∇f=⟨?,? ⟩
∇f(−2,−3)=⟨?,? ⟩
The directional derivative is:?
Explanation:
Given: [tex]f(x, y) = \sin(x + 2y)[/tex] P(-2, -3)
The unit vector in the direction of [tex]\theta = 3\pi/4[/tex] is given by
[tex]\vec{\textbf{u}} = \left(-\dfrac{\sqrt{2}}{2}\right)\hat{\textbf{i}} + \left(\dfrac{\sqrt{2}}{2}\right)\hat{\textbf{j}}[/tex]
The gradient of f(x, y) [tex]\nabla{f(x, y)}[/tex] is defined as
[tex]\nabla{f(x, y)} = \dfrac{\partial{f}}{\partial{x}}\hat{\textbf{i}} + \dfrac{\partial{f}}{\partial{y}}\hat{\textbf{j}}[/tex]
[tex]= \cos(x + 2y)\hat{\textbf{i}} + 2\cos(x+ 2y)\hat{\textbf{j}}[/tex]
so the gradient of f(x, y) at (-2,-3) is
[tex]\nabla{f(-2, -3)} = \cos(-8)\hat{\textbf{i}} + 2\cos(-8)\hat{\textbf{j}}[/tex]
Therefore, the directional derivative [tex]D_uf(x, y)[/tex] is
[tex]D_uf(x, y) = \nabla{f(x, y)}\cdot \vec{\textbf{u}}[/tex]
[tex]\:\:\:\:\:\:\:=\cos(-8)\left(-\frac{\sqrt{2}}{2}\right) + 2\cos(-8)\left(\frac{\sqrt{2}}{2}\right)[/tex]
[tex]\:\:\:\:\:\:\:\:=\cos(-8)\left(\frac{\sqrt{2}}{2}\right) = -0.103[/tex]
Note: the arguments of the cosines are in radian measure.
Please help me please hurry
in the myth about the dauther of the sun, the sun was angry ay the people on the Earth because:
In the myth about the dauther of the sun, the sun was angry at the people on the Earth because the Earth people always looked at the moon with it's twisted up face and squinted eyes They also smiles at moon's gentle light .
Hope it helps you
the apostle paul's teachings were consistent with what belief system in that they emphasized the equality of human beings??
A. Greek Beliefs.
B. Monarchies
C. Democracy.
D. Roman beliefs.
What was the reason for Bacon's Rebellion?
O A. Religion
O B. Gender
C. Socio-economic
O D. Race
what to do after I had mild heart attack??
Answer:
A good night's rest is especially important for heart attack patients. And if you feel tired during the day, take a nap or a short rest. Heart patients should rest before they get too tired.
Explanation:
what is the percentage of people living in nepal and urban area
Answer:
In 2018, the share of the population living in urban areas in Nepal was approximately 19.74 percent.
Do you know this it is for social studies
Answer:
I think the will be
Explanation:
agree
Answer:
resist because he held him by his arm
Can someone help me please
Answer:
buh buh buh B
Explanation:
it's just the way it is
The language and religion of a people are physical features of a region.
Please select the best answer from the choices provided
T
F
Answer:
True
Explanation:
hope it helps youAnswer:
true
Explanation:
Do you know this for social studies
disbelieve means to mistrust
Hey there!
Disbelieve means to be unable to believe, so your correct answer is MISTRUST.
If this helps, please mark me as brainliest!
Have a great day!
Do you know this for social studies
Reconstruction ended with the compromise of 1877 and the election of Rutherford B. Hayes as president. True or false?
What made it difficult for feed African American to take advantage of the homestead act?
The Homestead Act, enacted during the Civil War in 1862, provided that any adult citizen, or intended citizen, who had never borne arms against the U.S. government could claim 160 acres of surveyed government land. Claimants were required to “improve” the plot by building a dwelling and cultivating the land.
Which of the following is a human characteristic of a place?
А
landforms
B
climate
с
vegetation
D
language
Answer:
language because the ornaments of the human being is their own language
Among all the following, language is a human characteristic of a place. Thus, option 'D' is the correct option.
What are language and its characteristics?Language is a set of commonly spoken, manual (signed), or written symbols that people use to communicate as members of a social group and members of that group's culture. Language serves a variety of purposes, including communication, identity expression, play, creative expression, and emotional release. For engagement and communication, a language is an essential tool.
Language impacts attitudes and behavior, reflecting and expressing facts and observations. It so makes up an essential part of the cultural foundations for societal growth. Humans are social creatures by nature. Therefore, this urge for communication will always exist. Language facilitates communication between speakers of the same language by providing standardized voice patterns and structures that make communication possible.
Learn more about language here:
https://brainly.com/question/20921887
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How did Columbus's discovery of North and South America benefit Spain?
SELECT AN ANSWER
It enabled Spain to have more spices.
It enabled Spain to establish an empire.
It enabled Spain to prove the world is round.
It enabled Spain to prove the world is smaller than believed.
Answer:
It enabled spain to establish an empire.
Explanation:
Non Austronesian migration
Explanation:
There are two major hypotheses defining the Neolithic Age Austronesian movement: the “out of Taiwan or South China” theory by the language-oriented Peter Bellwood; and 'Island Origin” theory by the Southeast Asian specialist, the archaeologist, Wilhelm Solheim; and another by Stephen Oppenheimer.
Who is Charles Peterson
Answer:
Charles Peterson is an American photographer well known for his work with the Seattle independent record label Sub Pop and for capturing the then-newly emerging grunge scene in images.
Answer: I hope this is helpful
Explanation:
Charles Peterson (born 1964 in Longview, Washington) is an American photographer well known for his work with the Seattle independent record label Sub Pop[1] and for capturing the then-newly emerging grunge scene in images. Peterson is known for depicting the rise of the Pacific Northwest underground music scene in the late 1980s to early 1990s. Visually, he is known for his trademark full-frame, non-cropped images. Reviews about his work include the following, "Peterson is known for his action-packed, sometimes partially blurred black-and-white shots taken with a wide-angle lens.[3]Peterson's introduction to photography was as a youngster watching his uncle developing film. He attended Bothell High and his photographs were in the school newspaper and yearbook.[3] His livelihood today mainly comes from licensing his photographs and books. He does some commercial shoots but does not photograph many bands.[3]He lives in Seattle with his wife, son Felix and daughter Leica.[4]
10. Why is 1619 such an important year?
a.
b.
n
Who do lobbyists try to influence
in an attempt to sway a vote?
A. members of Congress
B. the president
C. Supreme Court judges
Answer:
The correct choice is option A. members of Congress
Explanation:
Lobbyists are usually looking to make a positive impact on the decision makers of a law or act, as this will greatly affect the legislation process. Congress members oftentimes listen to lobbyists and pay more attention to them, because they can gain funds and interest this way.
Why is it important to evaluate a source to make sure it is reliable, valid and credible? Why does it matter ? Explain in 3 sentences
Answer:
So your answer can be reliable, credible towards your readers,and also so when a person is reading over it they are learning information that is real.
Explanation:
Thomas Hobbes wrote a book called Leviathan that discussed
A.how people were entitled to certain natural rights
B.how people made a social contract and form a state to keep from destroying one another
C.how governments should be broken up into three separate branches
D.how awesome deep-sea creatures are.
Answer:
I'm going to say A. because shortly after Charles was executed, an English philosopher, Thomas Hobbes (1588–1679), wrote Leviathan, a defense of the absolute power of kings. ... Hobbes asserted that the people agreed among themselves to “lay down” their natural rights of equality and freedom and give absolute power to a sovereign.
What was the final blow to Benedict Arnold's pride?
Answer:
In January 1801, Benedict Arnold's health began to decline. He had suffered from gout since 1775, and the condition attacked his unwounded leg to the point where he was unable to go to sea.
Explanation:
Describe the Truman Doctrine, noting whether it contributed to world peace and security.
Answer:
Truman also argued that the United States was compelled to assist “free peoples” in their struggles against “totalitarian regimes,” because the spread of authoritarianism would “undermine the foundations of international peace and hence the security of the United States.”
Indeed, both nations established repressive right-wing regimes in the years following the Truman Doctrine.
Explanation:
Who follows the Vedas, Torah, Bible, Qur'an, Analects ? 
Answer:
I follow the bible
Explanation:
Pliz marks brainlistt
What was the original purpose of the Constitutional Convention?
A. to debate the need for a bill of rights
B. to amend the Articles of Confederation
C. to explore options for raising money
D. to discuss the question of slavery
Answer: Please refer to:
The Constitutional Convention in Philadelphia met between May and September of 1787 to address the problems of the weak central government that existed under the Articles of Confederation.
===> Choose B. to amend the Articles of Confederation
Explanation:
Not sure but hope it helps.
Who was the 32nd president of the US? How many terms were served? From what date to date?
The 32nd president of the United States was Franklin D. Roosevelt. He was actually the only president in US history to serve three full terms. He died on his fourth term, though. He served from March 4, 1933-April 12, 1945, until he died. He would have been the first president of the US to serve four full terms, if he did not die. Anyways, I hope this helped answer your question for you. Enjoy your day, and take care.
FDR. Three terms before he died. 1933-1945.
Where is the following quote found? We the People of the United States, in order to form a more perfect Union, establish Justice, insure domestic tranquility, provide for the common defense, promote the general welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this constitution for the United States of America." O Preamble to the Articles of Confederation. O Preamble to the Constitution. O Section III of the Bill of Rights. O Conclusion to the Declaration of Independence.
Answer: The declaration of independence
Explanation: I feal like I remember that.
6. Read this quote from Ben Hogan below the photograph.
purple
"People have always been telling me what I can't do. I guess I have wanted to show them.
That's been one of my driving forces all my life."
31
What does this quote mean? Use at least two direct quotes from the text that give
examples of this quote.
A
urn
Julie Bahn
Answer: Alright, so I strongly believe that this phrase/quote is Ben Hogan's basically trying to put it this way," There will be people out there who'll tell you what you can and cannot do. But don't listen to them, and prove them wrong; show what you can and cannot do. That'll be the key of steer your life ( also well known as driving force).
Explanation: Everyone just told me that I'm never going to get a golf scholarship as a freshman. Instead of listening to them, I decided to prove them wrong. I practice, and practice, and practice until I became a pro at it. When golf season came up, I showed the coaches my all. The coaches admired my skills so much, that they gave me a scholarship in my freshman year.
Why was cuneiform first developed and why is writing
important, according to John green?
Answer:
Sample answer: Cuneiform was first developed to record economic transactions and trade. Writing is important because it is something that not everyone can do (only elites), so it helped to create a class distinction.
Explanation:
