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Os vértices de um triângulo são A(2, 5), B(0, 0) e
C(4, −2). A altura desse triângulo, relativa a 
é
Seja a função 
. Os valores
inteiros do domínio de f são tais que seu produto é igual a
Sejam 
o diâmetro da circunferência, e as retas t e t’
tangentes a ela nos pontos N e M, respectivamente. O valor de x é
O gráfico representa a produção de arroz, em milhares de toneladas, em certo país, no período 1980-1988.
Pelo gráfico, pode-se concluir que, no período 1980-1988,
nesse país, a produção média anual de arroz, em mil toneladas, é,
aproximadamente,
Na figura, 
é tangente à circunferência em A, e B é
ponto médio de 
. A medida de 
, em cm, é
Para que o sistema 
seja possível e determinado, deve-se ter
Um ângulo central α determina, em uma circunferência de
raio r, um arco de comprimento 
. A medida desse
ângulo é
Traveling can be a fun adventure for children. And for the little ones to really have a pleasant trip, parents should prepare themselves. Take in carry-on a coat ( it’s usually chilly on board), extra clothes (including socks), solid and easy-to-store food, games and toys that they are used to and that don’t make noise. During take-off and landing, keep the children awake and offer them, according to their age, breast milk if they are still breastfeeding, a pacifier, a bottle with water or gum to avoid the discomfort of pressurization.
GLOSSARY:
carry-on = bagagem de mão
chilly = frio
easy-to-store= de fácil armazenamento
breastfeeding = amamentando
pacifier = chupeta
According to the text, all the statements are correct except.
The writer remembers that children are taught not to _________________ .
A Bunch of Butterflies
Priests don’t like confetti, it makes a mess.
The bride and groom rarely like rice, because it hurts. So the latest thing at weddings, at least in America, is butterflies.
What could be nicer than having a bunch of butterflies released into the air around the marriage couple? Companies are now springing up in the US to meet the new demand, but animal rights groups are concerned. How are the butterflies caught, how are they transported to the wedding and what happens to them afterwards?
The wedding party thinks the butterflies fly away, but often the insect cannot survive in their new environment and die.
GLOSSARY:
spring up – surgir
A Bunch of Butterflies
Priests don’t like confetti, it makes a mess.
The bride and groom rarely like rice, because it hurts. So the latest thing at weddings, at least in America, is butterflies.
What could be nicer than having a bunch of butterflies released into the air around the marriage couple? Companies are now springing up in the US to meet the new demand, but animal rights groups are concerned. How are the butterflies caught, how are they transported to the wedding and what happens to them afterwards?
The wedding party thinks the butterflies fly away, but often the insect cannot survive in their new environment and die.
GLOSSARY:
spring up – surgir
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