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VARVARA [1.3K]
2 years ago
15

Traducir al lenguaje algebraico las siguientes frases. Valor 3 Puntos.

Mathematics
1 answer:
shepuryov [24]2 years ago
7 0

Las fraces traducidas para languaje algebraico són:

a)

\frac{x}{2} - 8

b)

2(x + 5)

c)

3x + 4

d)

x^2 + y^2

-------------------------------

  • El número es desconocido, puesto que será llamado de x.

a)

  • La mitad de un número es \frac{x}{2}.
  • Menos ocho es \frac{x}{2} - 8.

b)

  • Un número más cinco es x + 5.
  • El doble es: 2(x + 5).

c)

  • El triple de un número es 3x.
  • Aumenta en cuatro, 3x + 4.

d)

  • Dos números diferentes son x, y.
  • Los cuadrados son x^2, y^2
  • La suma de los cuadrados es x^2 + y^2.

Un problema similar es dado en brainly.com/question/23311756

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Answer:

<em>The observed t (2.533) is in the tail cut off by the critical t (2.462), therefore we reject H0. It is likely  that the books are older than 20 years of age on average.</em>

Step-by-step explanation:

<em>Step 1: Hypotheses and α level </em>

H0: μ ≤ 20

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<u><em>α = 0.01</em></u>

<em>Step 2: Critical region </em>

α = .01

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df = n – 1 = 30 – 1 = 29

<u><em>t - critical = 2.462 </em></u>

<em>Step 3: Calculate t which is observed </em>

sM = √(s2 / n) = √(67.5 / 30) = 1.5

t = (M – μ) / sM  

t = (23.8 – 20) / 1.5

<u><em>t = 2.533 </em></u>

<u><em /></u>

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3 years ago
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Step-by-step explanation:

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