Una persona observa en un ángulo de 54° lo alto que es un edificio; si la persona mide 1,72 metros y está ubicada a 18 metros de la base del edificio.

a) cuál es la altura en metros del edificio

Step-by-step explanation:

First, take a look at the picture I attached you. It is a drawing which represent the problem.

As you can see from the picture the building height would be the sum of the person's height plus the length of the side of the triangle:

There are many ways to solve this problem, however I believe that the easiest one is using tangent identity which states:

Hence:

Solving for :

So the building height is:

Translation:

Primero, mira la imagen que te adjunté. Es un dibujo que representa el problema.

Como puede ver en la imagen, la altura del edificio sería la suma de la altura de la persona más la longitud del lado del triángulo:

Hay muchas maneras de resolver este problema, sin embargo, creo que la más fácil es usar la identidad de la tangente que establece:

Por lo tanto:

Resolviendo para :

Entonces la altura del edificio es:

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6