En una academia hay 3 aulas, el aula roja, el aula azul, y el aula negra. Los estudiantes están reportados de la siguiente manera: . el aula roja tiene el 50% de los estudiantes
. el aula azul, tiene el 30%de los estudiantes.
. el aula negra tiene, tiene el 20% de los estudiantes.

Los hombres están reportados de manera uniforme, pues en cada aula hay un 40% de hombres, si se selecciona estudiante al azar:

a)¿Cuál es la probabilidad de que sea una mujer del aula azul?
b)¿Cuál es la probabilidad de que sea hombre del aula negra?

To solve this problem, we just have to multiply.

(A) The event: woman in the blue class room is related to 60% of women representation and 30% of students representation in the blue classroom.

Therefore, the chances of choosing a woman student from the blue classroom is

Which is equivalent to 18% of probability.

We apply the same process to find the probability of choosing a man from the black classroom.

Which is equivalent to 8% of probability.

x=4

step-by-step explanation:

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,