Dado f(x) = 3x2
– 2x -1 y g(x) = (3x +1)-1
determine el domino de (f.g) (x)
Maté superior
Quiz
•
Mathematics
•
University
•
Easy
JONATHAN LOZANO
Used 1+ times
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25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dado f(x) = 3x2
– 2x -1 y g(x) = (3x +1)-1
determine el domino de (f.g) (x)
a) R – { ⅓}
b) ] - ∞;∞ [
c) ] 0; ⅓ [
d) R – {- ⅓}
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El área de un rectángulo es 40 𝒄𝒎𝟐
y sus lados vienen dados por: 𝒙
𝟐 + 𝟗𝒙 + 𝟏𝟖 ¿Cuántos centímetros
mide su ancho y su largo?
a) l =10 y a= 4
b) l =20 y a= 2
d) l =8 y a= 5
c) l =40 y a= 1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La solución de la ecuación 𝟏−𝟑𝐱
𝟐
+ 𝟑 =
𝐱+𝟓
𝟒
− 𝐱 es igual a:
12
6
3
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
11.- El conjunto solución de la ecuación: |
a) S = {−5,9}
b) S = {−5,10}
c) S = {−5, −9}
d) S = {−5, −10}
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
17.- Determinar el intervalo solución de: 𝐱
𝟐 − 𝟑𝐱 − 𝟏𝟎 > 𝟎
a) (−∞, −2) ∪ (5, +∞)
b) (−∞, −5) ∪ [2, +∞)
c) (−∞, −5) ∪ (2, +∞)
d) (−∞, −5) ∪ (−2, +∞)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
21.- Encontrar el valor de k para que el sistema {
𝟓𝒙 − 𝒌𝒚 = 𝟐
𝟑𝒙 + 𝟐𝒚 = 𝟑
no tenga solución
a) 2
b) – 2
c) – 10/3
d) – 4/3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
24.- A un congreso acuden 60 personas. Si se van 3 hombres y vienen 3 mujeres, el número de mujeres sería ⅓
el número de hombres. ¿ Cuántos hombres y mujeres hay en el congreso?
a) 12 hombres y 48 mujeres
b) 40 hombres y 20 mujeres
c) 48 hombres y 12 mujeres
d) 30 hombres y 30 mujeres
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