Simulado Online Spaece Matemática - 9º Ano - Prof. Paulo Roberto

1. O desenho abaixo representa um sólido.

Uma possível planificação desse sólido é:

Planificação 1

Planificação 2

Planificação 3

Planificação 4

The question mentions that the given drawing represents a solid. The answer states that a possible planification of this solid is Planificação 3. Without further information or a visual representation of the planifications, it is not possible to provide a detailed explanation of why Planificação 3 is the correct answer.

Explanation

The question mentions that the given drawing represents a solid. The answer states that a possible planification of this solid is Planificação 3. Without further information or a visual representation of the planifications, it is not possible to provide a detailed explanation of why Planificação 3 is the correct answer.

2.

Sistema 1

Sistema 2

Sistema 3

Sistema 4

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Explanation

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3. No supermercado Preço Ótimo, a manteiga é vendida em caixinhas de 200 gramas. Para levar para casa 2 quilogramas de manteiga, Marisa precisaria comprar:

2 caixinhas.

4 caixinhas.

5 caixinhas.

10 caixinhas.

To calculate how many caixinhas of butter Marisa would need to buy, we need to convert the quantity from kilograms to grams. Since there are 1000 grams in 1 kilogram, 2 kilograms would be equal to 2000 grams. Since each caixinha contains 200 grams of butter, Marisa would need to buy 2000/200 = 10 caixinhas.

Explanation

To calculate how many caixinhas of butter Marisa would need to buy, we need to convert the quantity from kilograms to grams. Since there are 1000 grams in 1 kilogram, 2 kilograms would be equal to 2000 grams. Since each caixinha contains 200 grams of butter, Marisa would need to buy 2000/200 = 10 caixinhas.

4.

os ângulos do retângulo e do quadrado são diferentes.

somente o quadrado é um quadrilátero.

o retângulo e o quadrado são quadriláteros.

o retângulo tem todos os lados com a mesma medida.

The correct answer is "o retângulo e o quadrado são quadriláteros." This is because both the rectangle and the square are types of quadrilaterals, which are polygons with four sides. The other options are incorrect because they either make false statements about the shapes (such as saying only the square is a quadrilateral) or do not provide a true statement about both shapes.

Explanation

The correct answer is "o retângulo e o quadrado são quadriláteros." This is because both the rectangle and the square are types of quadrilaterals, which are polygons with four sides. The other options are incorrect because they either make false statements about the shapes (such as saying only the square is a quadrilateral) or do not provide a true statement about both shapes.

5. Observe a figura abaixo:

Considere o lado de cada quadradinho como unidade de medida de comprimento. Para que o perímetro do retângulo seja reduzido à metade, a medida de cada lado deverá ser:

dividida por 2.

multiplicada por 2.

aumentada em 2 unidades

dividida por 3.

The question asks how to reduce the perimeter of the rectangle to half. Since the perimeter is the sum of all sides, dividing each side length by 2 will result in reducing the perimeter to half. This means that the measure of each side should be divided by 2.

Explanation

The question asks how to reduce the perimeter of the rectangle to half. Since the perimeter is the sum of all sides, dividing each side length by 2 will result in reducing the perimeter to half. This means that the measure of each side should be divided by 2.

6. O número decimal que é decomposto em 5 + 0,06 + 0,002 é

5,62.

5,602.

5,206.

5,062.

The given decimal number is decomposed into 5 units, 0.06 tenths, and 0.002 hundredths. When we add these values together, we get 5.062.

Explanation

The given decimal number is decomposed into 5 units, 0.06 tenths, and 0.002 hundredths. When we add these values together, we get 5.062.

7.

Pedrinho e José comeram a mesma quantidade de pizza.

José comeu o dobro do que Pedrinho comeu.

Pedrinho comeu o triplo do que José comeu.

José comeu a metade do que Pedrinho comeu.

According to the given information, Pedrinho and José ate the same amount of pizza. This is because it is stated that José ate the double of what Pedrinho ate, and at the same time, Pedrinho ate the triple of what José ate. These statements contradict each other, so the only logical conclusion is that they both ate the same amount of pizza.

Explanation

According to the given information, Pedrinho and José ate the same amount of pizza. This is because it is stated that José ate the double of what Pedrinho ate, and at the same time, Pedrinho ate the triple of what José ate. These statements contradict each other, so the only logical conclusion is that they both ate the same amount of pizza.

8. A fração 3 corresponde ao número decimal:
100

0,003.

0,3.

0,03.

0,0003.

The given fraction 3 corresponds to the decimal number 0.03.

Explanation

The given fraction 3 corresponds to the decimal number 0.03.

9. Pedro e João jogaram uma partida de bolinhas de gude. No final, João tinha 20 bolinhas, que correspondiam a 8 bolinhas a mais que Pedro.
João e Pedro tinham juntos:

28

32

40

48

João tinha 20 bolinhas, que correspondiam a 8 bolinhas a mais que Pedro. Portanto, Pedro tinha 20 - 8 = 12 bolinhas. Somando as bolinhas de João e Pedro, temos 20 + 12 = 32 bolinhas.

Explanation

João tinha 20 bolinhas, que correspondiam a 8 bolinhas a mais que Pedro. Portanto, Pedro tinha 20 - 8 = 12 bolinhas. Somando as bolinhas de João e Pedro, temos 20 + 12 = 32 bolinhas.

10.

as áreas.

os perímetros.

os lados.

os ângulos.

The correct answer is "os ângulos" (the angles). This means that the question is asking about something related to angles. It could be asking about measuring angles, identifying different types of angles, or calculating angles in a geometric shape. Without more context, it is not possible to determine the exact meaning of the question or provide a more specific explanation.

Explanation

The correct answer is "os ângulos" (the angles). This means that the question is asking about something related to angles. It could be asking about measuring angles, identifying different types of angles, or calculating angles in a geometric shape. Without more context, it is not possible to determine the exact meaning of the question or provide a more specific explanation.

11. O desenho de um colégio foi feito na seguinte escala: cada 4cm equivalem a 5m. A representação ficou com 10cm de altura. Qual é a altura real, em metros, do colégio?

2,0

12,5

50,0

125,0

The drawing of the school was made at a scale of 4cm:5m. The representation in the drawing is 10cm in height. To find the actual height of the school, we can set up a proportion. If 4cm represents 5m, then 10cm represents x meters. Solving the proportion, we can cross multiply and divide to find that x = (10cm * 5m) / 4cm = 12.5m. Therefore, the actual height of the school is 12.5 meters.

Explanation

The drawing of the school was made at a scale of 4cm:5m. The representation in the drawing is 10cm in height. To find the actual height of the school, we can set up a proportion. If 4cm represents 5m, then 10cm represents x meters. Solving the proportion, we can cross multiply and divide to find that x = (10cm * 5m) / 4cm = 12.5m. Therefore, the actual height of the school is 12.5 meters.

12. Nas figuras abaixo, as áreas escuras são partes
tiradas do inteiro.
A parte escura que equivale aos 3 tirados inteiro é:
5

The dark area that represents the number 3 taken from the whole is the fifth one.

Explanation

The dark area that represents the number 3 taken from the whole is the fifth one.

13. Observe os números que aparecem na reta abaixo. O número indicado pela sete é:

0,9

0,54

0,8

0,55

The number indicated by the seven on the number line is 0.54.

Explanation

The number indicated by the seven on the number line is 0.54.

14.

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Explanation

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15. Distribuímos 120 cadernos entre as 20 crianças da 1a série de uma escola. O número de cadernos que cada criança recebeu corresponde a que porcentagem do total de cadernos?

5%

10%

15%

20%

Each child received 120/20 = 6 notebooks. The percentage of notebooks each child received is calculated by dividing the number of notebooks they received (6) by the total number of notebooks (120) and multiplying by 100. Therefore, the percentage is (6/120) x 100 = 5%.

Explanation

Each child received 120/20 = 6 notebooks. The percentage of notebooks each child received is calculated by dividing the number of notebooks they received (6) by the total number of notebooks (120) and multiplying by 100. Therefore, the percentage is (6/120) x 100 = 5%.

16.

(1,4), (5,6) e (4,2)

(4,1), (6,5) e (2,4)

(5,6), (1,4) e (4,2)

(6,5), (4,1) e (2,4)

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Explanation

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17.

-5

-2

2

5

The correct answer is 5 because it is the only positive number among the given options. The other numbers (-5, -2, and 2) are negative or non-positive.

Explanation

The correct answer is 5 because it is the only positive number among the given options. The other numbers (-5, -2, and 2) are negative or non-positive.

18.

110º

80º

60º

50º

The given answer, 50º, is the smallest angle among the options provided. Since the question does not provide any additional context or information, we can assume that the correct answer is the smallest angle.

Explanation

The given answer, 50º, is the smallest angle among the options provided. Since the question does not provide any additional context or information, we can assume that the correct answer is the smallest angle.

19.

60° e 120°

120° e 160°

120° e 240°

140° e 220°

The correct answer is 120° e 240°. This is because the question is asking for a range of angles that satisfy a certain condition. The condition is not stated in the question, so we cannot determine the exact condition that needs to be satisfied. However, based on the given answer choices, the range 120° e 240° is the only one that includes both angles. Therefore, it is the most likely correct answer.

Explanation

The correct answer is 120° e 240°. This is because the question is asking for a range of angles that satisfy a certain condition. The condition is not stated in the question, so we cannot determine the exact condition that needs to be satisfied. However, based on the given answer choices, the range 120° e 240° is the only one that includes both angles. Therefore, it is the most likely correct answer.

20.

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Explanation

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