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ÁLGEBRA | NUM. Y OPER.

Authored by Anabel Facundo

Mathematics

12th Grade

Used 12+ times

ÁLGEBRA | NUM. Y OPER.
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Determina el rango de f. f(x) = 4x – 3, x ∈ [–1; 3]

[–7; 9[

[–7; 9]

[7; 9]

. [7; 9[

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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 Se define R = {(x; y) ∈ N2N^2   / 4y + x = 32}. Halla la suma de los elementos del rango de R.

24

28

30

36

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Si el vértice de la gráfica de f(x) = a x2x^2   + bx + 8 es (4; –8), calcula a + b.

6

-4

4

-7

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Si f es una función cuadrática tal que f(x) = 3 x2x^2   + 6x + 10 y – 2 < x ≤ 3, halla el rango de f

[10; 55]

]10; 55]

[7; +∞[

[7; 55]

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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¿Cuánto le falta a 0,333… para ser igual a 0,666… de 0,75?

0,1

0,1666…

0,16

0,15

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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1/3 menos de la edad de "A” es igual a los 2/5 de la edad de “B”. ¿Qué fracción representa la edad de B respecto a la de A?

13/8

3/5

26/7

5/3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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¿Cuántas fracciones de denominador 120 están comprendidas entre 4/3 y 5/2?

141

120

139

138

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