Ricardo Sergio Braga Vasques
Quiz
•
Mathematics
•
12th Grade
•
Hard
Ricardo Vasques
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tirei uma foto de algumas crianças brincando com cachorros. Na foto há 7 cabeças e 22 pernas. Quantas crianças e quantos cachorros apareceram nesta foto?
5 crianças e 2 cachorros
2 crianças e 5 cachorros
3 crianças e 4 cachorros
4 crianças e 3 cachorros
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o grau da equação x^2-8x+15=0?
1
2
3
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o valor da soma das raízes da equação (x-2)(x-4)(2x-6)=0:
9
10
11
8
Answer explanation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dada a função f(x)=3x+2 g(x)=x+2, o valor de fog(3) é:
18
16
15
17
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere nove bolinhas que têm o mesmo tamanho e aparência. Apenas uma é um pouco mais leve que as outras oito. Fazendo uso de uma balança de dois pratos, quantas são o mínimo de pesagens para achar a bolinha mais leve sem contar com a sorte?
3
2
1
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No lançamento de dois dados a probabilidade de termos soma igual a 5 é:
25,12%
33,14%
51,16%
11,11%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No lançamento de dois dados a probabilidade de termos soma maior ou igual a 9 é
13,14%
65,11%
27,78%
18,13%
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