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Vsevolod [243]
3 years ago
15

Name the line(s) of reflection. Select all that apply. line b line c line d line a​

Mathematics
1 answer:
hodyreva [135]3 years ago
5 0
Line c it is a reflection of line b
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FGH, m∠G= 30° and m∠H= 100°. What is the measure of ∠F?
trapecia [35]

Answer:

∠F = 50°

Step-by-step explanation:

The sum of all three angles in a triangle = 180°

∠F = 180° - 30° - 100° = 50°

6 0
3 years ago
Which could be the measure of three angles of an acute triangle?
kvasek [131]

Answer: B: 70, 80, 30

Step-by-step explanation:

An acute triangle has all 3 angles at less than 90 degrees, therefore the answer is B because its the only one that has all three at <90

6 0
4 years ago
The memory card holds 65,536 kilobytes. If each picture is about 769 kilobytes about how many more pictures can they take
Neporo4naja [7]
About 85 more pictures. 65536/769=85.22236671
4 0
3 years ago
Read 2 more answers
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}

Ahora, el ancho del río es:

CO = tan(\alpha)*CA = tan(64.8)*28.2 = 59.9 m

Por lo tanto, el ancho del río es 59.9 metros.

Espero que te sea de utilidad!                  

4 0
3 years ago
Two times the quantity of eight times a number plus two is equal to three the quantity of two times the same number minus seven
Effectus [21]

The unknown number is - 2.5

Let the number = n

The equation will be formed as follows;

  • eight times a number plus two = 8n + 2
  • Two times the quantity of eight times a number plus two = 2(8n + 2)
  • two times the same number minus seven = 2n - 7
  • three the quantity of two times the same number minus seven = 3(2n-7)

Our final equation becomes;

2(8n + 2) = 3(2n-7)

Simplify as follow, to determine the unknown number;

16n + 4 = 6n - 21

16n - 6n = -25

10n = -25

n = -2.5

Thus, the unknown number is - 2.5

Learn more here: brainly.com/question/13818690

7 0
3 years ago
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