Recuperação de Matemática 8 ano
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
JOAO CRUZ
Used 8+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
O valor da expressão numérica 2x + 3a, sendo a = -4 e x = 5, é:
2
-2
3
-3
Answer explanation
2.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
O valor numérico da expressão .... sendo x = 5 e y= -1
9
10
11
-11
Answer explanation
3.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Qual o grau do monômio 3x2y4z?
8
7
6
5
4
4.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
A figura a seguir representa uma piscina no formato de um paralelepípedo.
Sabendo que para calcular o volume do paralelepípedo basta multiplicar as três dimensões, qual o monômio que expressa o volume dessa piscina?
24x3y + 12x2.
24x2y + 12x2
24x3y + 12.
24x3y + 12.
5.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
A raiz quadrada de 72 está entre:
4 e 5
5 e 6
6 e 7
7 e 8
8 e 9
Answer explanation
6.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Calculando a raízes √64 - √49, temos:
1
-1
15
13
7.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
O valor da expressão 7² - √64 + 3² é:
42
51
50
38
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