<span>The ancient city of Rome dominated most of Europe, Africa and the Middle East for centuries. Although it is tempting to ascribe Rome's success to its military power or economic might, the geography of the city created the conditions that enabled trade and military expansion. Without a few quirks of geography, Rome might have slipped into obscurity forever.</span>
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)
Senators are more vulnerable to defeat than their colleagues in the House <span> because Senate candidates are more evenly matched in spending
Money often became a very decisive factor for political candidates for winning the votes through campaigns and advertisement.
Similar spending means that they wouldn't have enough found to out-perform their competitor, which make the senators more prone to losing.</span>
Answer:
Explanation:
it was through the distraction the Napoleonic Wars gave Spain, France that made the British Navy blocked access to the New World, so ties were cut and authority weakened or absent. Colonies learned they could make it on their own. This encouraged the New World colonies to rebel against their colonial masters and seek independence.
Preside over the Senate and cast tie breaker votes. of the executive branch - the Executive Office of the President, the Cabinet, and the independent agencies.Under the original rules of the Constitution, each member of the Electoral College cast two electoral votes, with no distinction made between electoral votes for president and electoral votes for vice president. The presidential candidate receiving the greatest number of votes provided that number equaled a majority of the electors, was elected president, while the presidential candidate receiving the second-most votes was elected vice president. In cases where no individual won a vote from a majority of the electors, as well in cases where multiple individuals won a majority but tied each other for the most votes, the House of Representatives would hold a contingent election to select the president. In cases where multiple candidates tied for the second-most votes, the Senate would hold a contingent election to select the vice president. The first four presidential elections were conducted under these rules.
The experiences of the 1796 and 1800 presidential elections spurred legislators to amend the presidential election process, requiring each member of the Electoral College to cast one electoral vote for president and one electoral vote for vice president. Under the new rules, a contingent election is still held by the House of Representatives if no candidate wins a presidential electoral vote from a majority of the electors, but there is no longer any possibility of multiple candidates winning presidential electoral votes from a majority of electors. The Twelfth Amendment also contained other provisions, lowering the number of candidates eligible to be selected by the House in a presidential contingent election from five to three, establishing that the Senate would hold a contingent election for vice president if no candidate won a majority of the vice presidential electoral vote, and providing that no individual constitutionally ineligible to the office of president would be eligible to serve as vice president.
