
Questionário de Matemática e Habilidades
Passage
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
KELI DINIZ
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é um número quadrado perfeito?
Um número que possui raiz quadrada exata.
Um número que é sempre ímpar.
Um número que é sempre par.
Um número que é múltiplo de 10.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se 15² = 225, qual é a raiz quadrada de 225?
15
14
16
17
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a expressão que representa a área da figura 2?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a forma fatorada do trinômio do quadrado perfeito?
(a + b)²
(a - b)²
(a + b)(a - b)
a² - b²
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula do quadrado da soma de dois termos (a + b)?
(a + b)² = a² + 2ab + b²
(a + b)² = a² - 2ab + b²
(a + b)² = a² + b²
(a + b)² = a² - b²
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que representa o termo 2ab na fórmula (a + b)² = a² + 2ab + b²?
O dobro do produto do primeiro termo pelo segundo
O quadrado do primeiro termo
O quadrado do segundo termo
A soma dos quadrados dos termos
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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