
Flashcard 1B 9 ANO
Flashcard
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Others
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9th Grade
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Practice Problem
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Hard
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1.
FLASHCARD QUESTION
Front
Qual é a representação da medida de 0,00007 metro em notação científica?
Back
7 \times 10^{-5} m
2.
FLASHCARD QUESTION
Front
Observe a operação apresentada no quadro abaixo.
(x - 7) · (x + 7)
Qual é o resultado dessa operação?
Back
x² - 49.
3.
FLASHCARD QUESTION
Front
Qual é a representação desse número em notação científica?
Back
2 × 10⁻⁶
4.
FLASHCARD QUESTION
Front
Observe a expressão apresentada no quadro abaixo. Qual é a expansão dessa expressão algébrica?
Back
x² + 6x + 9.
5.
FLASHCARD QUESTION
Front
Qual desses trinômios é um quadrado perfeito equivalente a (x - 3)²? I: x² - 6x + 9 II: x² - 9x + 9 III: x² + 6x + 9 IV: x² - 3x + 9
Back
x² - 6x + 9
6.
FLASHCARD QUESTION
Front
Qual é a probabilidade de Ana deslocar sua peça 3 casas nessa jogada?
Back
7.
FLASHCARD QUESTION
Front
Qual é o comprimento mínimo, em metros, da corda que será utilizada para delimitar a região cinza da praça?
Back
30 m.
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