Questões Militares Nível médio

Sejam dois polígonos convexos de n e (n + 1) lados. Se a diferença entre o número de suas diagonais é 7, o valor de n é _____. 

A forma trigonométrica de um número complexo z é z = ρ(m + in). Se o afixo de z, no plano de Argand-Gauss, está no 3º quadrante, então é correto afirmar que __________.

Sejam E₁ e E₂ duas esferas de raios R₁ e R₂, respectivamente. Se R₂  ³√10 cm e se o volume de E₂ é igual a 64% do volume de E₁, então o valor de R₁, em cm, é ______. 

Seja a função f: IR* ₊ →  IR definida por f(x) log_a x, com  0 < a ≠ 1. Se f(4) = [f(2)]² , então o valor de a é _______. 

Douglas participará de 2 sorteios: o 1º de uma bicicleta e o 2º de um micro-ondas. Douglas comprou 10 dos 200 números que foram vendidos para o 1º sorteio e 24 dos 400 números vendidos para o 2º sorteio. A probabilidade de ele ganhar algum prêmio é  

É possível formar um triângulo com segmentos medindo, em cm, 

Seja uma circunferência que passa pelo ponto de encontro das retas de equações (r) x + y − 6 = 0 e (s) x − y − 2 = 0. Se a equação reduzida dessa circunferência é (x − 1)² + (y + 2)² = k, então k é igual a _____. 

Read the text below.

What’s your sign?
Neil J. Anderson

        Thousands of years ago, the ancient people of Babylon and Egypt studied the stars in the sky and created the zodiac. It was first used to keep track of time. Later, many used the stars to describe a person’s personality and to say what would happen in the future.        A person’s zodiac sign is connected to his or her birth date. Some believe this sign can tell us about a person’s personality.(...)        In Asia, a person’s blood type is also used to describe personality. People with the blood type A are calm and serious, but they can be selfish. Type Bs are independent but can be lazy. ABs are honest, and type Os are loving and talkative.      Not everybody believes that your blood type or birth sign describes your personality. In fact, some people disapprove of using the zodiac; they say it is just foolishness. (...)
Active Skills for Reading, 2nd Edition, Student Book 1.

    According to the text, write T for true and F for false to the statements related to the zodiac. After, choose the alternative with the right sequence.
( ) It was originally created to reveal the future. ( ) It is linked to the day a person was born. ( ) It is considered silly by some people. ( ) It was created to name the stars. 

According to the chart, write T for true and F for false, then choose the right alternative.  

( ) Even if people wanted to help, there wouldn’t be much they could do.

( ) People help when they don’t purchase goods made out of animals’ fur.

( ) Few people believe education is the main key to help endangered animals.

( ) Many people believe that giving some of your time to work for charities help endangered animals. 

Read the cartoon and, without changing the meaning, choose the alternative that substitutes the modal verb CAN in “We can do something about the future”.  

Choose the alternative that best substitutes the words “turned upside down” in the picture below. 

Choose the conditional sentence that correctly summarizes the text.  

The word itself, in bold in the text, refers to 

The only victim of the crash was the ________ pilot. 

Choose the alternative that best summarizes the text.  

The word got, underlined in the text, is closest in meaning to  

 The word one, in bold in the text, refers to 

Another way of saying “It may not be a high-tech device, but the suggestion box has probably done a lot to boost corporate efficiency” is

Choose the alternative that completes the text. 

 The word allow, in bold in the text, is closest in meaning to