Ответы 4
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спасибо
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Автор:
ramblertqc0 - 6 лет назад
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0
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но решение нужно
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Автор:
tata24 - 6 лет назад
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0
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а)не имеет решений,квадрат не может быть отрицательнымб)х=3в)х=1
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Автор:
caesartran - 6 лет назад
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0
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5х^2=-20..х^2=-4----квадрат не может быть ото числом ...... 2)х(3-х)=0 при х=0 и х= 3 3)д=1+48=49 х1=-1+7/6 =1. Х2=-1-7/6 =-8/6=-4/3
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Автор:
eifel - 6 лет назад
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0
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Many of us still don't think that we need to recycle or can't be bothered. Sometimes choosing the correct bin to put our rubbish in and emptying them feels like too much effort. Realistically, separating our rubbish is not that difficult and only takes a few minutes of our time. In some countries people receive money for items that they recycle, mainly plastic and glass bottles. Encouraging recycling through enabling people to earn money has raised awareness of the importance of recycling and people doing this often want to recycle other items.
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Sometimes it is hard to understand why recycling helps the earth. The main principal is that recycling saves the energy that would be otherwise required to produce waste products again. Production along with other polluting factors such as transport is increasing the levels of harmful gases in the atmosphere and this is causing the global temperature to rise. As a result, weather patterns have changed in some areas, which have had devastating effects such as more natural disasters and problems in farming and agriculture.
The saddest part is that most affected areas are the underdeveloped countries in the global south who don't have enough money or resources to waste like we do and therefore they don't largely contribute to global warming. Whilst they struggle with natural disasters and changing weathers affecting their food production, people like us living in developed countries that are mostly located in the global north experience few problems. Furthermore, many people believe that a change in global temperature is natural and has occurred throughout history. That is correct, but it is scientifically proven that global warming as a consequence of human activity does contribute to climate change. The current global temperature is rising very quickly and it won't be long before we won't be able to live in certain parts of the world due to extreme weather.
Choosing not to recycle increases landfill and many of the items that are put in landfills take hundreds of years to decompose. Many items, such as glass, never decompose and will stay there forever. The world is already overpopulated and eventually we may run out of space. Nobody wants to end up living next to a landfill. Packaging is also included in the price of the items we buy and putting them in landfill is not only wasting resources, but money as well. Plastic bags are a perfect example. Why do we get a plastic bag every time we go to the shop? In some places people have to pay for plastic bags, therefore we can save both money and resources through taking a reusable bag to the shops. It is also easier, as plastic bags don't last very long and aren't particularly easy to carry.
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