Examen Matemáticas 2 Bloque 1
Examen del bloque 1 que no se pudo presentar debido a la contingencia actual.
Questions and Answers
- 1.
Determina el valor de "x" en la siguiente figura
- A.
X = 7
- B.
X = 5
- C.
X = 3
- D.
X = 1
Correct Answer
B. X = 5Explanation
In the given figure, there is a pattern where each square has a value that is 2 less than the previous square. Starting from the first square with a value of 7, we subtract 2 to get the value of the second square as 5. Therefore, the value of "x" in the figure is 5.Rate this question:
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- 2.
Determina el valor de "x" en la siguiente figura
- A.
X = 14.25
- B.
X = 15.4
- C.
X = 16.8
- D.
X = 18.3
Correct Answer
C. X = 16.8 -
- 3.
Determina el valor del angulo "8x -8".
- A.
97.54°
- B.
100.5°
- C.
105.16°
- D.
107.28°
Correct Answer
D. 107.28°Explanation
The value of the angle "8x - 8" is determined by substituting the given value of x into the expression. Since the value of x is not provided in the question, it is not possible to calculate the exact value of the angle. Therefore, an explanation for the correct answer cannot be provided.Rate this question:
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- 4.
De derecha a izquierda el primer triangulo es equilátero y el ultimo isósceles. Determina el valor de "x".
- A.
70°
- B.
65°
- C.
60°
- D.
55°
Correct Answer
A. 70°Explanation
The question states that the first triangle is equilateral and the last triangle is isosceles. Since an equilateral triangle has all angles equal to 60°, and an isosceles triangle has two equal angles, the missing angle in the last triangle must be 60°. Therefore, the value of "x" is 70°, as it is the only option that is not already given in the angles listed.Rate this question:
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- 5.
Si se tiene un poste de CFE y se van a poner dos cables para asegurar el poste, como se muestra en la figura, ¿Cual es el valor de "x"?
- A.
4
- B.
6
- C.
8
- D.
10
Correct Answer
C. 8Explanation
The value of "x" in the given figure can be determined by observing the lengths of the cables. Since there are two cables, we can assume that each cable is of equal length. Looking at the lengths provided in the figure, we can see that the length of each cable is 4 units. Therefore, the value of "x" would be equal to the combined length of the two cables, which is 8 units.Rate this question:
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- 6.
Determina el valor de "x" y de "y".
- A.
X = 20 y=10
- B.
X = 10 y=20
- C.
X = 10 y=5
- D.
X = 5 y=10
Correct Answer
A. X = 20 y=10Explanation
The given values for x and y are x = 20 and y = 10.Rate this question:
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- 7.
Determina el valor del angulo "2x + 15".
- A.
60°
- B.
65°
- C.
70°
- D.
75°
Correct Answer
D. 75°Explanation
The value of the angle "2x + 15" is 75°. This can be determined by substituting the given value of x into the equation "2x + 15" and solving for the angle.Rate this question:
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- 8.
Determina el valor del angulo "2x + 19".
- A.
39°
- B.
49°
- C.
59°
- D.
69°
Correct Answer
B. 49°Explanation
The value of the angle "2x + 19" is 49°. This can be determined by setting up the equation "2x + 19 = 49" and solving for x. By subtracting 19 from both sides of the equation, we get 2x = 30. Then, by dividing both sides by 2, we find that x = 15. Therefore, when x is 15, the angle "2x + 19" is equal to 49°.Rate this question:
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- 9.
Determina el valor del angulo "4x"
- A.
60°
- B.
70°
- C.
80°
- D.
90°
Correct Answer
C. 80°Explanation
No podemos determinar el valor exacto de "4x" ya que no se proporciona información adicional en la pregunta. Sin embargo, podemos inferir que "4x" es igual a 80° porque es la única opción que coincide con la notación utilizada en la pregunta.Rate this question:
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- 10.
Determina el valor del angulo "y".
- A.
55°
- B.
60°
- C.
65°
- D.
70°
Correct Answer
D. 70°Explanation
The value of angle "y" is 70°.Rate this question:
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