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lilavasa [31]
3 years ago
9

Darla spent $120.37 on groceries in January, $108.45 in February, and $114.86 in March. What was the average monthly cost of Dar

la’s groceries?
Mathematics
2 answers:
MaRussiya [10]3 years ago
3 0
The average of her grocery shopping is $114.56. How you get the average is you add all of the numbers together and divide by how many numbers there are. And in this case, there were 3 numbers. Hope this helps! :)
umka21 [38]3 years ago
3 0
$114.56 i am inferring... if i am correct, you add the totals together and divide by 3.Hopefully i helped

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vitfil [10]

Answer:

Step-by-step explanation:

a = 20(hypotenuse)

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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:

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

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

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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:

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Ahora, el ancho del río es:

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Espero que te sea de utilidad!                  

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