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A matriz assim obtida tem determinante igual a
Y recebe o mesmo valor, por seu trabalho semanal, porém trabalha 4 horas a mais e recebe R$4,00 a menos do que X, por hora trabalhada.
Nessas condições, pode-se afirmar que o número de horas semanais de trabalho de Y equivale a
Se cada módulo tiver uma taxa de participação de 70% dos funcionários, pode-se estimar o percentual mínimo de participação simultânea, nos três módulos, em
Respeitando-se a restrição imposta, quando, no elevador, já se encontram 6 mulheres, é correto afirmar que, nesse elevador, ainda podem entrar, no máximo,
Admitindo-se que esse número tenha aumentado 25% a cada hora, pode-se afirmar que, no início da manifestação, o número aproximado de participantes era igual a
Considering the Green Belt Movement, it's correct to say:
( ) All of its members are women.
( ) It aims to protect our planet.
( ) Its members have planted over twenty million trees in Kenya.
( ) Its success depends on rising lots of money and using high-tech devices.
According to the text, the correct sequence, from top to bottom, is
A. ____ was Voyager 1 sent into space? Thirty-six years ago.
B. ____ was Voyager 1 sent into space? To study other planets.
C. ____ is it from Earth now? Twelve billion miles.
D. ____ is it expected to last? Ten years at the most.
According to the text, the correct sequence, from top to bottom, is
About the Voyager 1 spacecraft, it's correct to say:
( ) It has managed to get out of our solar system.
( ) It went past all the planets in our solar system.
( ) It avoided getting near the region known as heliopause.
( ) It's unable to send photos of the interstellar space back to Earth.
According to the text, the correct sequence, from top to bottom, is

DAVIS, Jim. Garfield. Disponível em: <http://www.google.com.br/url?>. Acesso em: 2 fev. 2014.

DAVIS, Jim. Garfield. Disponível em: <http://www.google.com.br/url?>. Acesso em: 2 fev. 2014.
In this sentence, the words in bold, not only…but also, express
In his book, The Slow Down Diet, Marc David encourages us to
( ) avoid eating junk food.
( ) really enjoy every meal.
( ) skip meals so as to lose weight.
( ) take our time while we're having a meal.
According to the text, the correct sequence, from top to bottom, is



