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Iteru [2.4K]
3 years ago
10

(PLEASE ANSWER!!!) Mrs. Johnson arranged the desks in her classroom into n groups of 3 desks and 1 desk left over. Drag numbers

and symbols to creat an expression for the total number of desks in a class room.

Mathematics
1 answer:
nikitadnepr [17]3 years ago
6 0

Answer:

The answer is 10 with 1 left over which is 31 / 3



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Halle la ecuación del eje x y la ecuación del eje y, usando dos puntos que se encuentren sobre los mismos.
lisov135 [29]

Una linea recta ( cualquier eje coordenado es una línea recta) queda definida si se conocen dos puntos que están sobre ella.

Solución:

Ecuación del eje x      y = 0

Ecuación del eje y      x = 0

Para darle respuesta a la pregunta podemos seguir el siguiente procedimiento:

  • Escogemos dos puntos arbitrarios sobre el eje x, por ejemplo

P ( 2 ; 0 )  y Q ( 5 ; 0 )         ( todos los puntos sobre el eje x tienen coordenada y = 0.

Según la cual  m = (y₂ - y₁)/ ( x₂ - x₁ )    m = 0

  • Usamos la ecuación pendiente-Intercepto

y = m×x + b         donde m es la pendiente y b el intercepto con el eje y

y entonces tenemos:

  • m = 0    b ( 0 ; 0 )
  • Por sustitución en la ecuación pendiente-intercepto

y = 0

Procediendo de forma similar obtendremos la ecuación del eje y

P´( 0 ; 4 )     Q´( 0 : 8 ) entonces

y = m×x + b

En este caso, la pendiente no es definida ( tang 90° ) y b es de nuevo el punto b ( 0 ; 0).

A partir de  que todos y cada uno de los puntos sobre el eje y son  de valor 0 para x, concluímos que  ecuación del eje y es

x = 0

Enlaces de interés:brainly.com/question/21135669?

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2 years ago
The length of an engine bolt for a lawnmower is 2.675 centimeters. The length of an engine bolt for another lawnmower is 2.5848
Ilia_Sergeevich [38]

2.675cm - 2.5848 cm = .0902 cm

AnswerD. 0.0902 centimeters

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3 years ago
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The mean lifetime of a tire is 48 months with a standard deviation of 77 months. If 147 tires are sampled, what is the probabili
astraxan [27]

Answer:

0.55199

Step-by-step explanation:

When we have a random number of samples, We solve using z score formula

z = (x-μ)/σ/√n where

x is the raw score

μ is the population mean

σ is the population standard deviation

n is random number of samples

z = 0.83/77/√147

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Probabilty value from Z-Table:

P(x<48.83) = 0.55199

The probability that the mean of the sample would differ from the population mean by less than 0.83 months is 0.55199

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