
Examen Matematica uni 2023-1
Authored by wagner sanchez
Education
1st - 5th Grade
40 Questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
En la semana cultural de la UNI se inscribieron
150 estudiantes universitarios, que participaron en
actividades de canto, danza y debate, dentro de la
universidad. Todos participaron por lo menos en
alguna de las actividades, 90 participaron en canto,
60 en danza, 70 en debate, 33 en canto y danza, 13
en danza y debate y 37 en canto y debate. Determine
cuántos alumnos participaron en 3 actividades.
12
13
14
15
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Se tiene una progresión geométrica (an) n∈N con
razón r, que cumple:
a1–a2+a3=7
a4–a5+a6=56
Calcular a1/r
7/6
7/5
7/9
2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
En un problema de programación lineal, la región
factible viene dada por un polígono convexo acotado,
cuyos vértices son (0; 0), (0; 6), (7; 6) y (3; 0). Sea la
función objetivo f, dada por f(x; y)=2x–2y, entonces
el valor máximo de f es:
2
4
6
8
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
- 2
- 1
1
2
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Determine si cada uno de los enunciados es
verdadero V o falso F y escriba la secuencia correcta:
I. {3}={x∈N|1<x<5}
II. Sean A={x∈R|x<0 ∧ x∈N} y
B={x∈R|x∈Q ∧ x∈I}, entonces A=B.
III. El conjunto {7, 8} tiene cuatro subconjuntos.
vvf
fvv
fvf
vvv
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
La gráfica de una función f: R → R está dada por:
Determine la gráfica de g (x ) = I f(-x) + 8 ) I
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