✎ ✍ 5.2 ✌ Cramer’s Rule Introduction Cramer’s rule is a method for solving linear simultaneous equations. It makes use of determinants and so a knowledge of these is necessary before proceeding. 1. Cramer’s Rule - two equations If we are given a pair of simultaneous equations a1 x + b1 y = d1 a2 x + b2 y = d2 then x‚ and y can be found from d1 b1 d2 b2 a1 b1 a2 b2 a1 d1 a2 d2 a1 b 1 a2 b 2 x= y= Example Solve the equations 3x + 4y = −14 −2x − 3y = 11 Solution Using Cramer’s
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6th period 3 May 2012 Polar Pioneers Thirteen months into an Antarctic exploration Roald Amundsen found him and his fellow explorers engulfed by a sea of eternal ice. There was no escaping the lingering death traps surrounding the ship‚ without waiting for the frozen sea to release them. So they waited‚ for thirteen months‚ hunting seals and making warm clothes out of blankets (“Roald Amundsen”). This is one of many stories of Artic pioneers who have endured the treacherous components the
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For animals‚ being able to adapt in nature is a matter of life and death. Through evolution and natural selection‚ animals have acquired behavioral and physical traits called adaptations that enable them to acquire food‚ escape predators and attract mates. The cheetah has the speed necessary to run down its prey‚ monarchs secrete a poison that deters predators from feasting on it and the hummingbird has a very long tongue for extracting nectar from flowers. These are some of the more obvious adaptations
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What is the first image that comes to mind when you think about polar bears? Most people think of polar bear cubs sliding down snow hills guzzling bottles of Coke. However‚ in my mind I see large majestic animals struggling to survive in the wild as the home around them is destroyed by climate change. Polar bears (genus: ursus‚ species ursus maritimus)‚ are one of the few large mammals that are able to survive frigid temperatures that reach as low as minus sixty-nine degrees Celsius due to their
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There are many ways how the geography affected the inuits culture. One way it affected the inuits is what they ate. Another way it affected the inuits is what they wore. And last what they lived in.First‚ geography affected what the inuits ate. Inuits ate fish‚ mousse‚reindeer‚ and more. How I know they ate these kind of things is because inuits are by the ocean so that go fishing a lot. And in the picture it was cold and there were mountains. And reindeer and mouse live in the mountains. Also the
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A black bear is a large animal that have large home range and can be found throughout North America in more heavily habitats. Black Bears are North America’s most familiar and common bears.They most likely live in forests and are great tree climbers.They can also be found in mountain and swamp areas. In the Temperate forest biome precipitation evenly spread throughout the year. Varied temperatures (hot summers‚ cold winters). The plants tend to be broad-leaved and deciduous. The soil in this biome
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Alaskan Husky The Alaskan Husky is mainly bred as a working dog and is a superior sledge dog to the Siberian Husky. It is an intelligent dog which is social and energetic. They only respond to leadership and if they do not see the point they will not obey. These playful dogs make excellent pets but are not great watch dogs and they hate being lonely. Loneliness often leads to destructive behaviour. The Alaskan Husky is a good companion and likes being around people and other dogs. It is affectionate
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DISEC Agenda A: Militarisation of the Arctic Welcome note from the chairperson; Hello delegates‚ it is a pleasure to welcome all of you to the IIMUN. Similar to the famed aspects such as international extremism and nuclear warfare‚ the militarization of the arctic has also proven to be a matter of grave concern to the UN in recent times To many‚ we have bought this catastrophe upon us‚ inconsiderate use of natural
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The arctic tern known scientifically as the Sterna paradisaea it is a circumpolar seabird commonly recognised due to its strong migratory patterns. Having one of the largest migration patterns known throughout the animal kingdom traveling from its northern breeding grounds in arctic and sub-arctic regions spanning across Europe‚ Asia‚ Alaska and northern Canada. They migrate to Antarctic coast lines seeing two summers a year Using the data from the Tracking of Arctic terns Sterna paradisaea reveals
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States to increase the supply of available crude oil by drilling in the Arctic National Wildlife Refuge. The idea of drilling in the Arctic has been controversial and to the present day is still being debated. The United States’ need to determine whether drilling in the Arctic will be a worthwhile consideration‚ or if there are not sufficient benefits to counteract the harmful possibilities drilling possesses. Drilling in the Arctic National Wildlife Refuge provides many immediate economic benefits
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