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Reika [66]
2 years ago
9

Let

Mathematics
1 answer:
mash [69]2 years ago
6 0

We have Ux =  127.2 ft while we have σx =  1.985 ft

<h3>How to solve for the values</h3>

The normal distribution =  127.2 ft

The standard deviation = 27.5 ft

The random sample n is given as n = 192 trees.

sd / √n

= 27.5/√192

= 1.985 ft

Hence we have Mx = 127.2 ft

σx =  1.985 ft

127.2 + 2(1.985) = 131.17

127.2 - 2(1.985) = 123.23

Read more on standard deviation here: brainly.com/question/475676

#SPJ1

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Answer:

± 7

Step-by-step explanation:

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Problema de capacidades Una empresa aceitera ha envasado 3000 litros de aceite en 1200 botellas de dos y de cinco litros. ¿Cuánt
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Answer:

Hay 200 botellas de 5 litros y 1000 botellas de 2 litros.

Step-by-step explanation:

Un sistema de ecuaciones lineales es un conjunto de dos o más ecuaciones de primer grado, en el cual se relacionan dos o más incógnitas.

Resolver un sistema de ecuaciones consiste en encontrar el valor de cada incógnita para que se cumplan todas las ecuaciones del sistema.

En este caso, las variables a calcular son:

  • x= cantidad de botellas de 2 litros.
  • y= cantidad de botellas de 5 litros.

Una empresa aceitera ha envasado 3000 litros de aceite en 1200 botellas de dos y de cinco litros. Entonces es posible plantear el siguiente sistema de ecuaciones:

\left \{ {{2*x+5*y=3000} \atop {x+y=1200}} \right.

Existen varios métodos para resolver un sistema de ecuaciones. Resolviendo por el método de sustitución, que consiste en despejar o aislar una de las incógnitas y sustituir su expresión en la otra ecuación, despejas x de la segunda ecuación:

x= 1200 - y

Sustituyendo la expresión en la primer ecuación:

2*(1200 - y) + 5*y=3000

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2*1200 - 2*y + 5*y= 3000

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3*y= 3000 - 2400

3*y= 600

y= 600÷3

y= 200

Reemplazando en la expresión x= 1200 - y:

x= 1200 - y

x=1200 -200

x= 1000

<u><em>Hay 200 botellas de 5 litros y 1000 botellas de 2 litros.</em></u>

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