Предмет: Алгебра, автор: kolangelina17

(x-1)(x-2)-(x-1)(x-5)+(x-5)(x-2)÷16
это дробь
​

Удачник66: Что в числителе дроби? Что в знаменателе? И что со всем этим делать?

Ответы

Автор ответа: varyusik1
1

дальше мы меняем порядок слагаемых и получаем :

х²- 4х + 7

_______

16

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Pity the Billionaires.
THIS year's Forbes list of the world's billionaires is out, and as usual, the news is bad. You didn't make it. Neither did I.

But you may have imagined that you did. You may have fantasized about what it would be like to have multiple homes, to cruise around on your yacht and spend time counting your cash. If you are in business, you may even derive some tepid comfort from knowing that the club isn't closed. Indeed, the overall number of billionaires found by Forbes was 691 this time around, up from 587 the previous year. In other words, there's hope.

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The prospect of big lottery prizes typically sets off a ticket-buying frenzy among throngs of people who variously hope to quit their boring jobs, pay their debts and secure their children's future by winning. But their behavior makes little sense, except to the extent that they are buying entertainment. For most of them, a scant million or two would solve almost all the problems that a billion would. Sensible lottery players seek the more favorable odds of winning a smaller but still transformative prize instead of lining up for an infinitesimally small chance of winning a meaninglessly gigantic sum that offers few marginal benefits.

People make this kind of mistake all the time. That humans are so strikingly bad at weighing risks and rewards is one of the great paradoxes of evolution, and it makes you wonder how we outlasted the mastodons.The lottery fallacy is sad because so many more of us could become millionaires, as was amply demonstrated by Thomas J. Stanley and William D. Danko in their fascinating book, "The Millionaire Next Door." They found that inheritances or even extended educations aren't necessary; the main requirement, given time and a decent income, is thrift.Becoming a millionaire offers a measure of security, as well as access to better health care and schools. Consider that each $1 million in capital invested in a conservative mix of stocks and bonds would comfortably throw off something like the average annual household income -- about $44,000. While a net worth of $1 million would put you in the top 7 percent of American households, you should not assume that it will make you deliriously happy; the weak connection between money and happiness is well established, at least for those of us already fortunate enough to be living a standard middle-class lifestyle.

Billions of dollars, on the other hand, would distort your life in so many ways that they just aren't worth it. Billionaires often worry about their personal safety and that of their families. They may also worry about whether people really like them or their money, about how to avoid producing hopelessly spoiled or feckless children and about their own potential for psychologically destructive "maximizing" behavior. "Maximizers" search compulsively for the best of everything, with perennial disappointment a main result.

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