Choose the correct domain and range for the following graph: GUYS PLZ HELP !!!

Mathematics

1 answer:

algol [13]3 years ago

4 0

The last choice, do an is the x value so you would look at the x values which is -4, 6. And range is the y values so the highest y value and the lowest. Which is -5,4. So you answer is the last option

You might be interested in

What is an algebraic expression for the product of a number and 17? *

Nookie1986 [14]

Answer:

Step-by-step explanation

Since it says and that can mean add 17.

The product of a number is a number that was multiplied. So 30 is a product of 5 and 6.

So maybe the answer might be

x+17

7 0

3 years ago

What does this mean exactly?

bekas [8.4K]

Answer: Choice B $y \le 0$

========================================================

Explanation:

They want to know what are all the possible y values here. The range is the set of all possible outputs of a function.

The largest y value is y = 0 which occurs at the vertex, in this case the highest point. There is no smallest y value as those arrows point downward forever.

So y is between negative infinity and 0, which means we write $-\infty < y \le 0$

Converting that to interval notation leads to $(-\infty, 0]$ . Note the square bracket to include the endpoint.

The compound inequality $-\infty < y \le 0$ simplifies to $y \le 0$

One way to describe this particular relation's range is to say "The set of negative real numbers with 0 included".

Side note: The domain is the set of all possible x inputs. In this case, the domain is the set of all real numbers.

6 0

3 years ago

Una torre de 28.2 m de altura esta situada a la orilla de un rio, desde lo alto del edificio el ángulo de depresión a la orilla

Svet_ta [14]

Answer:

El ancho del río es 59.9 metros.

Step-by-step explanation:

El ancho del río lo podemos calcular con la siguiente relación trigonométrica asumiendo que la torre forma un triángulo rectángulo con el río:

$tan(\theta) = \frac{CO}{CA}$

En donde:

CA: es el cateto adyacente = Altura de la torre = 28.2 m

CO: es el cateto opuesto = ancho del río =?

θ: es el ángulo adyacente a CA

Dado que el ángulo de depresión (25.2°) está ubicado fuera de la parte superior de la hipotenusa del triángulo que forma la torre con la orilla opuesta del río, debemos calcular el ángulo interno (θ) como sigue:

$\theta = (90 - 25.2)^{\circ} = 64.8 ^{\circ}$