Expresa cada proposición mediante la gráfica, conjunto, desigualdad y la notación de
intervalo.
a. La estatura de los jugadores de un equipo de baloncesto es menor a 1,98 m y mayor o
igual a 1,82 m.
b. Los niveles normales de glucosa en ayunas en un ser humano deben ser mayores o
iguales a 70 mg/dl y menores que 100 mg/dl.
c. El tiempo que tarda una persona en llegar a su trabajo es mayor a 5/6 hora y menor o
igual a 3/2 hora.
d. La categoría juvenil es para personas mayores a 15 años y menores o iguales a 18
años.
e. La temperatura de la ciudad de Cali regularmente es menor a 31° C y mayor o igual a
19°C.

Answers

Answer 1

a. The height of the players of a basketball team is less than 1.98 m and greater than or equal to 1.82 m.

The Graph:

Draw a number line with 1.82 and 1.98 marked on it. Shade the region between the two points, including the point at 1.82, but not 1.98.

Set:

H = {h | 1.82 ≤ h < 1.98}

Inequality:

1.82 ≤ h < 1.98

Interval Notation:

[1.82, 1.98)

b. Normal fasting glucose levels in a human should be greater than or equal to 70 mg/dl and less than 100 mg/dl.

Graph:

Draw a number line with 70 and 100 marked on it. Shade the region between the two points, including both endpoints.

Set:

G = {g | 70 ≤ g < 100}

Inequality:

70 ≤ g < 100

Interval Notation:

[70, 100)

c. The time it takes a person to get to work is greater than 5/6 hours and less than or equal to 3/2 hour.

Graph:

Draw a number line with 5/6 and 3/2 marked on it. Shade the region between the two points, not including 5/6, but including 3/2.

Set:

T = {t | 5/6 < t ≤ 3/2}

Inequality:

5/6 < t ≤ 3/2

Interval Notation:

(5/6, 3/2]

d. The youth category is for people over 15 years of age and under or equal to 18 years.

Graph:

Draw a number line with 15 and 18 marked on it. Shade the region between the two points, not including 15, but including 18.

Set:

Y = {y | 15 < y ≤ 18}

Inequality:

15 < y ≤ 18

Interval Notation:

(15, 18]

e. The temperature in the city of Cali is regularly less than 31° C and greater than or equal to 19°C.

Graph:

Draw a number line with 19 and 31 marked on it. Shade the region between the two points, including 19, but not 31.

Set:

T_Cali = {t | 19 ≤ t < 31}

Inequality:

19 ≤ t < 31

Interval Notation:

[19, 31)

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The question in English is:

Express each statement using the graph, set, inequality, and the notation of

interval.

to. The height of the players of a basketball team is less than 1.98 m and greater than or

equal to 1.82 m.

b. Normal fasting glucose levels in a human should be greater than or

equal to 70 mg/dl and less than 100 mg/dl.

c. The time it takes a person to get to work is greater than 5/6 hours and less than or

equal to 3/2 hour.

d. The youth category is for people over 15 years of age and under or equal to 18

years.

and. The temperature in the city of Cali is regularly less than 31° C and greater than or equal to

19°C.


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