Предмет: Математика, автор: Gruv3

Знайдіть похідну функції у=x²+ 15 в точці х=3

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Автор ответа: йъйъйъй

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Покрокове пояснення:

у'=2x=2*3=6

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Предмет: Английский язык, автор: Elmira8

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Andy Wallace has invited me to dinner while I interview him, so I meet him at eight o'clock, not at some charming local cafe or new Japanese sushi bar, but at the back of the local supermarket beside the rubbish bins. ' As I come round the corner, he's already poking his head into one of the enormous skips, and pulling out bulging
bags of things.'Look at this,' he calls, beckoning to me. 'Have a tuna sandwich - they look delicious. And here's some almond croissants. And we've also got bananas and some yoghurts. Fantastic'
Andy is a 'freegan' - pronounced /fri:gan/. He can perfectly well afford to buy food, but he chooses not to as a protest against our shamefully wasteful consumer society. 'It's an outrage,' he explains, as he tucks into a crayfish and lettuce baguette. 'This food is perfectly good and could have fed at least thirty people. It should not be in the bin in the first place.' With a shocking four million people in Britain suffering because they do not have access to a decent diet, it seems he has a point.
And it's not just the big supermarkets that waste food - we are all just as guilty. According to a recent government survey, up to a third of the food we buy is thrown away, which in the UK amounts to a staggering £420 of wasted food per adult per year. Lord Haskins, the government's food and farming adviser, said, 'We are very greedy when we go and shop. Our eyes are bigger than our stomachs in homes and in restaurants.' However, according to Andy, the government itself is simply not doing enough in the first place to combat this incredible waste.The food redistribution charity, 'Fareshare', specialises in collecting high-quality food before it is past its sell-by date, and taking it to the many charities who feed our country's poor and vulnerable. Although the company has doubled in size in the last year, it is simply not able to cope with the endless supply of wasted food on its own. For a better example, we need to look to that enormous monument to consumerism which is the USA. If we were able to redistribute as muc food as they do in the states, we could give out at least 50,000 tonnes of free food a year. If only our governmentsupported these food redistribution charities, along with forcing our food businesses to cooperate, then it would be possible.
At the moment, most of our nation's surplus food goes, along with the other rubbish, to one of our many landfill sites, where it decomposes into methane - a greenhouse gas over 20 times more destructive to
the planet than carbon dioxide.Simply by dealing with this one problem, Britain could
reduce its emissions by 5%! Freegans feel strongly that our wasteful consumerist culture with all its endless producing, packaging, buying and binning, is entirely to blame for the destruction of the planet. So, as a freegan, Andy is committed to taking as little part in this massive cycle of consumerism as possible. 'I just never buy food,' he explains. 'Either I look for it outside supermarkets or restaurants, or I grow it in my garden. I also recycle and mend everything. I actually haven't bought anything new for years, and do you know what -I haven't needed to. In fact, it's amazing what you don't really need!'
For many people, Freeganism will be a step too far, but it serves to highlight the shameful waste of millions of tons of food every year in the UK.

2 года назад

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