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Lisa [10]
3 years ago
9

Can you guys check these :) I’ll give brainleist :)

Mathematics
1 answer:
stiv31 [10]3 years ago
8 0

Answer:

9. No

10. Yes

Step-by-step explanation:

The first one is not, since you have (3, 3) and (3, 9).  In a function, each x maps to a single y.

The second one is since every x appears only once.

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Un observador se encuentra en un faro al pie de un acantilado a 687m sobre el nivel del mar, desde este punto observa un barco c
maks197457 [2]

La distancia entre el barco y la base del acantilado es 291.61 metros.

<h3>¿Como calcular la distancia?</h3>

Podemos pensar en esta situacion como en un triangulo rectangulo. Uno de los catetos mide 687 metros, que es la altura del acantilado.

Y conocemos el angulo al que ese cateto es adjacente, que mide 23 grados.

La distancia entre la base del acantilado y el barco será el otro cateto del triangulo rectangulo.

Entonces podemos usar la relación:

tan(a) = (cateto opuesto)/(cateto adjacente)

Reemplazando lo que sabemos:

tan(23°) = D/687m

tan(23°)*687m = D = 291.61m

La distancia entre el barco y la base del acantilado es 291.61 metros.

Sí quieres aprender más sobre triangulos rectangulos:

brainly.com/question/2217700

#SPJ1

8 0
2 years ago
A combination is a grouping where the order of the items in the group does not matter.
faltersainse [42]
Your answer is false
4 0
3 years ago
X + 3x= solve pleasee
makkiz [27]

Answer:

2x

Step-by-step explanation:

x-x+3x-x

2x

7 0
4 years ago
A grocery store sells roasted almonds in bulk. What is the price per pound for the almonds?
Lynna [10]

Answer

8 is WRONG! The correct answer is 7.50

Step-by-step explanation:

4 0
4 years ago
1/10 of 400000 is 10 times as much as
Dmitriy789 [7]

i believe it is 40...

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