coordinates of the vertex of the parabola with equation y – x2 – 6x + 14. (Total 4 marks) 2. The diagram shows the graph of the function y = ax2 + bx + c. Complete the table below to show whether each expression is positive‚ negative or zero. Expression|positive|negative|zero| a|||| c|||| b2 – 4ac|||| b|||| (Total 4 marks) 3. The diagram shows the parabola y = (7 – x)(l + x). The points A and C are the x-intercepts and the point B is the maximum point. Find the coordinates of A
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In this essay I will discuss the adaptations on human evolution‚ this includes skin color‚ disease‚ Lactase Persistence‚ and the negative effects of the Neolithic Revolution. I will focus mostly on the diseased portion the most because this plays a vital role in natural selection. Natural selection is the process whereby organisms better adapted to their environment tend to survive and produce more offspring (dictionary.com). Without disease natural selection would play less of a part in how species
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The Positive and Negative Effects of Video Games http://www.raisesmartkid.com/3-to-6-years-old/4-articles/34-the-good-and-bad-effects-of-video-games Is playing video games good or bad for you? It can be both. Video games are frowned upon by parents as time-wasters‚ and worse‚ some education experts think that these games corrupt the brain. Violent video games are easily blamed by the media and some experts as the reason why some young people become violent or commit extreme anti-social behavior
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There are two forms of homeostasis‚ positive feedback and negative feedback. The type of feedback which is most common is negative feedback. This works by making the levels that have changed return back to normal. Positive feedback is the least common type of feedback. This is where one component escalates to another which continues to escalate to another. In positive feedback the level of control the component does not return to normal straight away. Negative feedback is usually what happens inside
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In Ancient Greece‚ the geography has played a huge role in the development of the country‚ in both positive and negative ways. Positive impacts have made developments to things like trade development‚ religion‚ and city-states. Negative impacts that have hurt Greece are the volcanic zone‚ and the actual land that makes up the country of Greece. The first positive effect geography had on Greece was the mountains throughout Greece. The mountains were difficult to cross so the Greeks had to use the
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It seemed to be the longest bus ride on which I had ever been. Every passenger had the same terrified look on their face. Each one of us seemed to be thinking the same thing. Asking ourselves‚ "Do we really want to go where this bus was taking us?" We all knew the destination ‚ and thought we were ready to go there. Many of us had visited this place‚ or places like it in our imaginations when we had played as kids. Was it a dream come true‚ or nightmare? The welcoming committee was
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important in modern society. But‚ what should we do to respond to the work of other people? Should we give positive feedbacks or negative opinions? Will the negative words hurt our colleagues? Many people feel puzzling on these questions. I do believe that both positive and negative feedbacks have their applications and advantages. And the most important thing is to treat our friends sincerely. Positive feedbacks can make people happy and fulfill their requirement of achievement. It’s the nature of human
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of physical‚ prayer‚ and magic spells. Temples were health centers. From the 1st-10th century initial care was at the local bishop’s house. They had deacons and deaconesses. In the 19th century‚ nurses cared for patients while at the risk of exposure to disease. Nursing in hospitals expanded in the 19th century‚ but nursing the communities did not increase significantly until 1893 when the Henry Street Settlement opened and focused on the health needs of poor people who lived in tenements in New York
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Health Care Utilization Health care in the United States is teetering on the edge; it will either turn into universal health care or become too expensive for the majority of Americans. Recent health care reform has been developed to lower the cost of health care and make it more widely available. However‚ health care in the United State may start trending towards becoming a universal system. There are many arguments to both sides of health care reform and universal health care. The Affordable
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increasing demand for safe‚ high-quality‚ and effective health care services?” . Three ways that the report suggests to do this are to utilize nurses to their full extent of education and training‚ a higher level of education for nurses and a stronger leadership role. . Nurses make up the largest segment of the health care workforce and have the capacity to positively impact healthcare in the future‚ especially with the changes coming from the Affordable Care Act. Nursing is one of the few professions that
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