B. -3
The value of a for given polynomial is -3
<h3>
Explanation:</h3>
<em>Factor theorem for polynomials,</em>
<u><em>If (x-c) is a factor of polynomial f(x), then f(c)=0</em></u>
Given: x+a is a factor of polynomial 
Let 
By Factor theorem, since x+a is a factor of f(x),
![(x+a)=[x-(-a)]\\So,\ f(-a)=0](https://tex.z-dn.net/?f=%28x%2Ba%29%3D%5Bx-%28-a%29%5D%5C%5CSo%2C%5C%20f%28-a%29%3D0)
Substituting 
in f(x)=0, we get
![f(x) = 4x^3-13x^2-ax = 0\\f(-a)= [4(-a)^3]-[13(-a)^2]-[a(-a)] = 0\\(-4a^3-13a^2+a^2)=0\\(-4a^3-12a^2)=0\\-4a^3=12a^2\\\frac{a^3}{a^2} =\frac{12}{-4} \\\\a=(-3)](https://tex.z-dn.net/?f=f%28x%29%20%3D%204x%5E3-13x%5E2-ax%20%3D%200%5C%5Cf%28-a%29%3D%20%5B4%28-a%29%5E3%5D-%5B13%28-a%29%5E2%5D-%5Ba%28-a%29%5D%20%3D%200%5C%5C%28-4a%5E3-13a%5E2%2Ba%5E2%29%3D0%5C%5C%28-4a%5E3-12a%5E2%29%3D0%5C%5C-4a%5E3%3D12a%5E2%5C%5C%5Cfrac%7Ba%5E3%7D%7Ba%5E2%7D%20%3D%5Cfrac%7B12%7D%7B-4%7D%20%5C%5C%5C%5Ca%3D%28-3%29)
Therefore, value of a is (-3)
Answer:
C. paced decision making model.
Explanation:
The paced decision making model is useful in making logical decisions. In this approach the problem, alternatives, and criteria are first listed in a matrix and then evaluated so as to arrive at a logical decision. The problem is first listed along with alternatives to the issue at hand. Then several criteria which include expected results are then considered. A vertical and horizontal line is the application of the matrix.
In Diane's example, she had a problem; difficulty deciding on a college. She then used the paced matrix, listing the colleges vertically and her criteria horizontally. This approach would help her evaluate the problem objectively and reach a better decision.
The United States supported forces fighting against Pol Pot and the Khmer Rouge, even though the United States wasn't directly involved in the conflict.
Option A
<u>Explanation:
</u>
Proxy wars can also have an enormous effect, particularly in the locality. However, thousands of unexploded bombs have been killing in the battle since the war had ended in Cambodia and Laos, not just in Vietnam.
Khmer Rouge, a socialist party headed by the Pol Pot who ruled Cambodia following its 1975 success in the Cambodian Civil War, committed the ethnic cleansing of Cambodia that killed between 1.5 and 2 million people, representing almost 25% of the Cambodian population.
It is claimed that, during the Cambodian-Vietnam War, the US The United States trained and equipped the Khmer Rouge directly to destroy Vietnam and the Ussr influence in Southeast Asia.
There's no reason to think that, even after 1979, when the Khmer Rouge was mostly ousted by Vietnam and governed a small part of the country, the United States encouraged the government of China to provide military training and support to the Khmer Rouges, and that America voted for a Khmer Rouge to continue the country's official member at UN.
The city of Jericho is a historic city, also mentioned in the Bible, when the Jews, after 40 years of journey through the desert, after leaving Egypt, finally reached the promised land. The city was in the "Canaan" land, according to the Bible, which the Jews led by Joshua, who was leader after Moses, had to conquer. According to historical data, Jericho was located in the valley of the Jordan River, a small village inhabited by a few thousand people, with a stone wall around. There is no evidence of the existence of a ziggurat in the village, which is a stone pyramid, a type of building that dates back to the Sumerian civilization, and which is more characteristic of the Mesopotamian region than Palestine.
I would say that the right answer is C.
Orwell's message is that any society with absolute power leaders will eventually collapse because leaders will inevitably operate powers in their favour.
<u>Explanation:</u>
In the novel titled Animal Far, George Orwell writes a story by warning people about the risks involved in assuming and rising to power in politics, especially in a communist state.
His novel has a slight reference to the Russian revolution, which is allegorical in nature. He refers to the Bolshevik revolution where Stalin used his power to oppress a lot of people. This is quite similar to Napoleon in the novel who rose to power and become a tyrant.
