Answer:
The Kennedy and Johnson administrations advocated a "flexible response" to containing communism, supporting a failed attempt by Cuban exiles to overthrow Fidel Castro, issuing a naval blockade with the threat of nuclear weapons during the Cuban Missile Crisis and deploying troops to prevent the spread of communism in South Vietnam, a decade-long struggle that caused domestic turmoil in the U.S. Containment also took place in more subtle ways. In the 1970s, President Nixon attempted to ease tensions with the Soviet Union. Nixon visited communist China and engaged in several diplomatic meetings with the Soviet leader. By the end of the decade, tensions once again escalated as the Soviet Union invaded Afghanistan. When President Reagan took office he denounced the Soviet Union as the "Evil Empire" and dramatically increased military budgets in an attempt to "win" the Cold War. Despite Reagan's contentious rhetoric, tensions between the two superpowers calmed in the late 1980s. Soviet leader adopted friendly relations with the west and instituted liberal domestic reforms through glasnost and perestroika. Reagan, Gorbachev, and British Prime Minister Margaret Thatcher met repeatedly to find common ground as the decade came to a close. In the end, the struggling Soviet economy led to the end of the Cold War. Weakened, the Soviets lost control of much of Eastern Europe by 1990. The fall of the Berlin Wall in November 1989 and the collapse of the Soviet Union in 1991 amounted to the end of the Cold War.
Explanation:
There are many different answers but the main process is probably heat, heat will melt rock to make it igneous when it cools. Heat will cause chemical and physical changes to change rock into metamorphic rock. Heat will drive the forces that break down rock at the surface. Heat will also cause the water cycle to precipitate water causing erosion and weathering. Heat will cause a freeze thaw cycle that breaks rock up.This creates sediment that can be transported by wind or water these depend on heat.Then the sediments will become sedimentary rock. Hope this helps! :)
You're looking for the 15th percentile of a normal distribution with <em>µ</em> = 242 and <em>σ</em> = 13, which is to say you want to find <em>x</em> * such that
P(<em>X</em> ≤ <em>x</em> *) = 0.15
Transform the wait-time random variable <em>X</em> to <em>Z</em>, which follows the standard normal distribution with mean 0 and s.d. 1 :
<em>Z</em> = (<em>X</em> - <em>µ</em>) / <em>σ</em> → <em>X</em> = <em>µ</em> + <em>σ</em> <em>Z</em> = 242 + 13 <em>Z</em>
Now,
P(<em>X</em> ≤ <em>x</em> *) = P(242 + 13<em> Z</em> ≤ <em>x</em> *) = P(<em>Z</em> ≤ (<em>x</em> * - 242)/13) = 0.15
Use a calculator (something with an inverse CDF function) or <em>Z</em>-table to look up the <em>z</em>-score, <em>z</em> = (<em>x</em> * - 242)/13, associated with a probability of 0.15. You would find that
<em>z</em> = (<em>x</em> * - 242)/13 ≈ -1.03643
Solve for <em>x</em> * :
<em>x</em> * ≈ 242 + 13 (-1.03643) ≈ 228.526 ≈ 229