
ATIVIDADES 9° ANO
Authored by Marcelo Viana
Mathematics
9th Grade
Used 13+ times

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13 questions
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1.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Expressão: 3x+5, onde x=2.
Qual é o valor numérico da expressão para x=2?
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Expressão: 4a−2b, onde a=5 e b=3.
Qual é o valor numérico da expressão para a=5 e b=3?
14
3
20
8
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Expressão: x2+3x−2, onde x=3.
Qual é o valor numérico da expressão para x=3?
16
15
14
13
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Se a soma de dois números é igual a 17 e seu produto é igual a 60, quais são os números?
12 e 5
17 e 8
14 e 2
16 e 9
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A figura ao lado tem uma área de 100 unidades quadradas. Encontre o valor de x.
X = -10 ou X=5
X = -5 ou X=5
X = - 2 ou X=10
X = -7 ou X=18
6.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Sendo a= 1, b = -7 e c=10, o valor numérico de x é?
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
O valor de x na figura é:
24
20
18
32
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