Considere a figura composta de três círculos concêntricos de raios medindo, respectivamente, 5 cm, 4 cm e 3 cm. A área, em cm !$ ^2 !$ , da parte hachurada é

According to the dialog, we can conclude that Evan decides to make a call before having

According to the text,

Uma equação polinomial de coeficientes reais admite como raízes os números –2, 0, 2 e 1 + i. O menor grau que essa equação pode ter é

A terrible thing happened to teacher Emma Rodriguez last year. Her little son, Edgar, drank some floor cleaner. She took him to the hospital. Edgar was OK and out of danger. But Emma decided that she wanted to make her home safer and happier.

In “teacher”, underlined in the paragraph, the suffix –“er” has the same function as the one in

A long job

A little boy sees his dad painting the ceiling. mom says to : “Look and remember how to do it. When you grow up you'll help dad”.

The boy says: “But won’t he have finished painting by then?

The correct pronouns to fill in the blanks are, respectively

O valor mínimo da escala de intensidade sonora corresponde a 10-!$ ^{12} !$ W/m!$ ^2 !$ . Assinale a alternativa que indica corretamente o valor, em decibéis, para uma intensidade de 1,0 W/m!$ ^2 !$ .

Assinale a alternativa em que aparecem dois tipos de discurso.

Uma pirâmide triangular regular tem !$ 2\sqrt3\,\,cm !$ de aresta da base e !$ 3\sqrt3\,\,cm !$ de apótema. A área lateral dessa pirâmide, em cm2 , é

Deforestation has recently been recognized as a global problem. Even today, governments and individuals believe that only the countries using up their forests will be affected by it. However, scientists are convinced that the world’s forests must be preserved. They base their conviction on scientific data that prove the importance of forests to all people everywhere.

(Taken from Between the Lines)

GLOSSARY

data – dados

deforestation – desmatamento

to recognize – reconhecer

to use up – consumir totalmente

Based on the text,