
Cuestionario de Matemáticas
Authored by Matemática Numérico
Mathematics
University
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11 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Cuando es preciso presentar la tabla estadística agrupada en intervalos:
Deben definirse el menor número posible de clases.
Conviene que las clases se definan con distinta amplitud.
Deben definirse el mayor número posible de clases.
Conviene que las clases se definan con la misma amplitud.
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
¿Cuál es la factorización correcta de la siguiente expresión? 3a+6b
3(a+b)
3(a+2b)
6(a+b)
6(a+2b)
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
¿Cuál es la propiedad que se muestra en la siguiente ecuación? 7 * (4 + 6) = 7 * 4 + 7 * 6
Propiedad conmutativa de la multiplicación
Propiedad asociativa de la multiplicación
Propiedad distributiva
Propiedad del elemento opuesto
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
En la siguiente serie de datos: 16, 17, 16, 18, 17, 19, 16, 18. La media toma valor de
16.33
17.13
18.46
19.40
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Determina el dominio de la función g(x) = 1/(2x+2)
R
x ≠ -2
x > -2
x ≠ -1
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Sea la función g(x) = -2x² + 8x - 6 determine su vértice:
V(4, 10)
V(-2, -2)
V(2, 2)
V(-4, -10)
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Si f(x) = 3x² - 5x + 2 y g(x) = -x² + 2x - 1, ¿a qué es igual (f - g)(x)?
2x² - 3x + 1
4x² - 7x + 3
-2x² + 3x - 1
2x² + 3x + 1
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