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Kewit333

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Rozwiąż równanie a)2x²-5x+7=0 b)-2x²=8x c)-x²-6x+9=0 d)(x-1)(x-2)=0 e)(x-6)(x+6)=(4x+3)²-(2-x)²
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Rozwiąż nierówność: a)-x²+2x-3<0 b)x²+6x+5≤0 c)4x²+28x+49≥0 d)2(x-4)(x+4)>3x(2x+3)
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Oblicz najmniejszą i największa wartość funkcji kwadratowej f(x)=-x²-2x+3 w przedziale <-2,1>
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Narysuj wykres funkcji: a) f(x)=(x-1)²+3 b)f(x)=(x-1)(x+3)
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Dany jest wzór funkcji f(x)=-x²-5x+6 a)Oblicz współrzędne wierzchołka paraboli. b_oblicz miejsca zerowe funkcji. c)narysuj wykres funkcji f. d)podaj zbiór wartości funkcji. e)w jakim przedziale funkcja jest rosnąca, a w jakim malejąca. f)dla jakich wartości x funkcja przyjmuje wartości dodatnie, a dla jakich ujemne? g)podaj największa lub najmniejszą wartość tej funkcji.
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Wyznacz współczynniki b, c trójmianu y=x²+bx+c, jeśli: a)trójmian ten przyjmuje wartości ujemne tylko dla x∈(-1;4), b)wykres tego trójmianu jest symetryczny względem prostej x=3 i przecina oś OY w punkcie (0,5)
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Dana jest funkcja f(x)=x²+5x+c, wyznacz współczynnik c, jeśli: a)funkcja f ma dokładnie jedno miejsce zerowe, b)najmniejsza wartość funkcji f jest równa -5/4
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Powierzchnia boczna walca po rozwinięciu jest prostokątem, którego przekątna o długosci 6v3(pierwiastek z 3) cm tworzy z krótszym bokiem,będącym zarazem wysokością walca, kąt 60°. Oblicz objętość i pole powierzchni całkowitej walca
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Zad 1 Na żarówce świateł postojowych jest napisane U = 12 V, I = 0,5 A. Oblicz moc żarówki. Zad 2 Przez silnik elektryczny zasilany napięciem 12 V przez 4 s popłynął prąd 2A. Oblicz pracę wykonaną przez prąd. Zad 3 Grzejnik elektryczny o mocy 1,5 kW działa przez 2 godziny. Oblicz w kWh, jaką pracę wykonał prąd, a następnie wynik podaj w dżulach[J]
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Przetłumacz teksty-bez translatora 1Antony Gormley is a British sculptor well-known for his interest in the human body as a subject of his work. Actually, he often uses his own body as a model for iron or fiberglass casts in many of his works. One of his best-known sculptures is "the Angel of the North", a 20-metre high, still sculpture of an angel standing on a hill in Gateshead, north-east England. 2Since the late 1980s, Rachel Whiteread has been creating unusual sculptures of everyday domestic items - the empty spaces under chairs and staircases, around baths, and inside cupboards and rooms. One of the most famous of these was her first public sculpture, the award-winning House - a concrete cast of the inside of a terraced house in east London. She recently created a huge sculpture consisting of 14,000 white plastic boxes cast from ten different cardboard boxes. Whiteread also uses materials like plaster, rubber and polystyrene to define the space around or inside objects and buildings. 3For many years, prize-winning artist Chris Ofili has been using elephant dung in his paintings as a symbol of his African heritage. He also stands his paintings on elephant dung, whic he gets free of charge from London Zoo. One of his bestknown works is No Woman No cry, the title of a Bob Marley Song. The painting is a tribute to the family of Stephen Lawrence, a London teenager who was murdered by a racist gang. The boy's face can be seen in each of the crying woman's tears.
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Przetłumacz teksty: tłumacz google-zgłaszany :) 1.This idea was probably made up to stop children swallowing gum, but it's nonsense. It may be a bit more difficult to break down than other things we eat, but actually it doesn't take very long to digest. 2.This is a common belief, but it's false. Astronauts in space can see the Great Wall before leaving the earth's orbit, as well as several other things like airports, motorways, and even bridges. But the truth is that the famous landmark is not visible from the moon. 3.This is probably true. Many people are afraid of flying because they believe it's risky, but statistics show that it's safer than crossing the road, and there is a greater chance of accidents in other forms of transport. However, the chances of surviving a plane cras are low. 4.Popeye claimed his strength came from this vegetable, but isn't a particularly good source of iron. In fact, it contains an acid which stops the body absorbing most of the iron. However, it is a rich source of healthy thins such as vitamins A, C and E. 5.This is a myth. People believe that fewer raindrops land on them if they run because they spend less time in the rain. But in reality you can get wetter by running, because more rain hits your chest when you run than when you walk. On the other hand, if you run to the nearest shelter you will get less wet. Of course, carrying an umbrella is the best way to avoid getting wet! 6.This is a famous saying, but is it a fact? On the contrary, lightning frequently hits the same place more than once. This is particularly true of high places - the Empire State Building in New York is struck 100 times every year on average, and in one storm it was struck 15 times in 15 minutes. The building is even designes as a lightning conductor to stop lightning hitting other buildings.
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Which of these sentences are requests, and which are commands? Match them with the reported requests and commands in animal talk. Tekst: 'Calm down!' said Alex. 'Don't tell me to calm down!' replied Irene. Husband and wife ? Brother and sister ? No, Alex is an African grey parrot and Dr Irene Pepperburg has trained him to talk – he has a vocabulary of about 100 words. Alex can also count up to seven, and identify shapes, colours and materials. And he has a close relationship with Dr Pepperburg. When she had to leave Alex with the vet for an operation, he asked her not to go. 'Stop!' he screamed. 'I love you ! Come back !' Apes are also famous for learning human language. Koko, a gorilla who was taught sign language, has learnt more than 1,000 signs and can understand about 2,000 English words. She has even done an Internet 'chat' ! But one of the most famous animal 'language learners' is Kanzi, a chimpanzee, who communicates by pressing symbols on a special keyboard. Kanzi not only has a large vocabulary, he also makes up words, for example, 'finger bracelet' (ring) and 'white tiger' (zebra). And he responds to an enormous number of spoken commands and questions. In one test, the researcher, Dr Savage-Rumbaugh, asked him to wash a potato, and then she told him to turn off the water. She asked him to get a ball, and told him to take a red ball into the office. She told him to put a tomato in the fridge and to put a key in the fridge. Kanzi responded correctly to 74 per cent of 660 requests and instructions. Kanzi is clearly a remarkable chimp. Oncem Dr Savage-Rumbaugh's keys were stolen by another chimp at the research centre. She asked Kanzi to get them back for her. Kanzi went to 'talk' to the guilty chimp, and brought back the stolen keys. And when he's relaxing, Kanzi likes watching TV – Tarzan is one of his favourite movies ! But can animals really learn and use language ? If your parrot tells you not to be silly, it's probably because the parrot has often heard you say 'Don't be silly !'. And perhaps we should spend more time trying to understand how animals communicate with each other, instead of teaching them to communicate with us.
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Which of these sentences are requests, and which are commands? Match them with the reported requests and commands in animal talk. Tekst: 'Calm down!' said Alex. 'Don't tell me to calm down!' replied Irene. Husband and wife ? Brother and sister ? No, Alex is an African grey parrot and Dr Irene Pepperburg has trained him to talk – he has a vocabulary of about 100 words. Alex can also count up to seven, and identify shapes, colours and materials. And he has a close relationship with Dr Pepperburg. When she had to leave Alex with the vet for an operation, he asked her not to go. 'Stop!' he screamed. 'I love you ! Come back !' Apes are also famous for learning human language. Koko, a gorilla who was taught sign language, has learnt more than 1,000 signs and can understand about 2,000 English words. She has even done an Internet 'chat' ! But one of the most famous animal 'language learners' is Kanzi, a chimpanzee, who communicates by pressing symbols on a special keyboard. Kanzi not only has a large vocabulary, he also makes up words, for example, 'finger bracelet' (ring) and 'white tiger' (zebra). And he responds to an enormous number of spoken commands and questions. In one test, the researcher, Dr Savage-Rumbaugh, asked him to wash a potato, and then she told him to turn off the water. She asked him to get a ball, and told him to take a red ball into the office. She told him to put a tomato in the fridge and to put a key in the fridge. Kanzi responded correctly to 74 per cent of 660 requests and instructions. Kanzi is clearly a remarkable chimp. Oncem Dr Savage-Rumbaugh's keys were stolen by another chimp at the research centre. She asked Kanzi to get them back for her. Kanzi went to 'talk' to the guilty chimp, and brought back the stolen keys. And when he's relaxing, Kanzi likes watching TV – Tarzan is one of his favourite movies ! But can animals really learn and use language ? If your parrot tells you not to be silly, it's probably because the parrot has often heard you say 'Don't be silly !'. And perhaps we should spend more time trying to understand how animals communicate with each other, instead of teaching them to communicate with us.
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1. Do 125 gramów 20% roztworu soli kuchennej dodano 75 g tej soli. Oblicz stężenie procentowe powstałego roztworu. 2. Oblicz, ile gramów wody należy odparować, aby z 500 g roztworu o stężeniu 2% otrzymać roztwór o stężeniu 5%. 3. Oblicz, ile gramów cukru należy dodać do 1000 g roztworu 2%, aby powstał roztwór 8%.
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Przetlumacz tekst z ang. na polski NIE Z TLUMACZA GOOGLE
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Przetłumacz tekst z ang. na polski. NIE Z TLUMACZA GOOGLE
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Przetlumacz tekst, Nie z tlumacza !! There were many people outside the theatre. Everyone was meeting friends and going in to see the play. We waited. Suddenly a small dark man appeared. 'Are you Miss Morstand and her friends?' he asked. 'Yes,' she said. 'You must promise me that these men are not policemen.'said the stranger. 'They are not policemen,'replied Miss Morstan. 'Then come with me,'said the man. We passed through so many streets that I was very soon lost. I had no idea where we were going. I was feeling nervous and Miss Morstan's face looked white. Sherlock Holmes was calm. At last we stopped. We were outside a house in a dark quiet street. It had only one light in the kitchen window. There were no lights in any of the other houses in the street.
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Przetlumacz tekst, Nie z tlumacza !! There were many people outside the theatre. Everyone was meeting friends and going in to see the play. We waited. Suddenly a small dark man appeared. 'Are you Miss Morstand and her friends?' he asked. 'Yes,' she said. 'You must promise me that these men are not policemen.'said the stranger. 'They are not policemen,'replied Miss Morstan. 'Then come with me,'said the man. We passed through so many streets that I was very soon lost. I had no idea where we were going. I was feeling nervous and Miss Morstan's face looked white. Sherlock Holmes was calm. At last we stopped. We were outside a house in a dark quiet street. It had only one light in the kitchen window. There were no lights in any of the other houses in the street.
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Przyporządkuj podanym niżej frazeologizmom wlasciwe znaczenia. 1.Oczy jak niezapominajki. 2.rybie oczy 3.wilgotne oczy 4.żabie oczy 5.sarnie oczy. 6.sowie oczy 7.jastrzębie oczy 8.szklane oczy 9.złe oczy 10.cielęce oczy 11.latające oczy 12.maślane oczy 13.świdrowate oczy a) Oczy jasne, o nieokreslonym kolorze lub odcieniu bez wyrazu b)oczy jasnoniebieskie c)oczy o łagodnym,sennym,bezmyslnym wyrazie d)oczy,ktore maja zdolnosc widzenia w ciemnosci e)spojrzenie nerwowo kierowane w coraz to inne strony f)bardzo dobry wzrok,bystre,przenikliwe spojrzenie g)duże,brązowe oczy lub oczy o lagodnym,plochliwym spojrzeniu h)wypukłe,wyłupiaste oczy i)oczy patrzące badawczo,bystro,przenikliwie j)oczy lekko załzawione,błyszczące niezdrowo,wyglądające chorobliwie k)oczy osoby,ktora placze lub jest bliska placzu l)oczy bardzo jasne i wypukle lub oczy bez wyrazu ł)spojrzenie,wzrok przynoszący niesczęście,rzucający zły urok.
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Ułoz 10 zdan: Dluzsza część przerwana krotsza np. Grałem z pilke nozna, kiedy mama zawolala mnie na obiad
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Napisz 5 zdań po angielsku o bajce Pingwiny z Madagaskaru
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Napisz 5 zdań po angielsku o bajce Pingwiny z Madagaskaru
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Na poruszajacy sie samochod dziala sila ciagu 1.2 kN, sila tarcia 0,4kN i sila oporu powietrza 200 N. Oblicz sile wypadkowa dzialajaca na samochod i napisz jakim ruchem porusza sie samochod. DANE: SZUKANE:
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Przetlumacz 2 krotkie zdania ;) You're pulling my legs ! Ok, Let's won there then. Bez tlumacza google :)
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