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KattyAbreu

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Resolva o sistema: { x + 3y = 9                                 { 2x - y = 4                                { 3x + 2y = 13 
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Em um triângulo retângulo,a hipotenusa mede 10 cm e o seno de um dos ângulos agudos vale 0,8. Calcule as medidas dos catetos.
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Complete the sentences below with the Simple Past or Present Perfect of the verb in parentheses.1 She __________ (study) at Cambridge University.2 I __________ (read) a very good article about the Royal Family yesterday.3 Charlotte __________ (not work) really hard last weekend.4 __________ you __________ (live) in Europe?5  __________ you __________ (see) the documentary about Britain last week?6 I __________ (not do) my homework, I'm sorry!
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21 PONTOSComplete the sentences using the underlined words or expressions in the leaflet.assault, coercive, nail biting, stuttering, peers, truancy, murdered.1 Failure to attend school is called __________.2 If you __________ someone, that means that you attack someone physically.3 If you use force to make something happen, you are being __________.4 A __________ person is somebody who was killed intentionally.5 __________ is the frequent repetition of words or parts of words that is produced with excessive amounts of struggle and effort.6 __________: to use your teeth to chew your finger nails.7 In education, a student's __________ are other students.
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Complete the sentences using the underlined words or expressions in the leaflet.1 Failure to attend school is called __________.2 If you __________ someone, that means that you attack someone physically.3 If you use force to make something happen, you are being __________.4 A __________ person is somebody who was killed intentionally.5 __________ is the frequent repetition of words or parts of words that is produced with excessive amounts of struggle and effort.6 __________: to use your teeth to chew your finger nails.7 In education, a student's __________ are other students.
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Ao encher o pneu com uma bomba manual, uma garota nota que, se comprimir o êmbolo rapidamente, o ar dentro da bomba se aquece. Explique por que isso acontece.
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Sobre um sistema realiza-se um trabalho de 300J e, em resposta, ele fornece 500cal de calor durante o mesmo intervalo de tempo. Qual a variação de energia interna do sistema sabendo que: 1cal= 4,2J.
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Num dado processo termodinâmico 0,5 Kg de água é aquecido de 20°C á 80°C e, ao mesmo tempo é realizado um trabalho de 3,2 x 10⁵ J. Sobre o sistema. Determine sua variação de energia interna. Dado: Calor específico da água = 4,2 x 10³ J/Kg°C.
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Utilidade das Algas, dos Fungos e das Plantas?
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Tipo de Nutrição das Algas, dos Fungos, das Plantas?
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Tipo e Número de Células das Algas, dos Fungos e das Plantas?
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Substância que forma a Parede Celular das Algas, dos Fungos e das Plantas?
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Substância de Reserva das Algas, dos Fungos e das Plantas?
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Tipo de Nutrição das Algas, dos Fungos e das Plantas?
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