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4)  ¿Cuántas bacterias habrá al cabo de $5$ horas si se considera que un cultivo de $7$ bacterias se duplica por cada hora?

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    A)  $32$

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    B)  $35$

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    C)  $70$

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    D)  $224$ 

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Para resolver este ejercicio de crecimiento exponencial, debemos realizar los siguientes pasos:

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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$a=$[[0]]

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$b=$[[1]]

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$x=$[[2]]

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Paso 1: Se debe determinar los valores $a$, $b$ y $c$ de la función exponencial $f(x)=a \\cdot b^x$, donde $a$ es la población inicial, $b$ es el tipo de crecimiento (doble, triple, etc) y $x$ es el tiempo transcurrido.
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$f(x)=a \\cdot b^x$

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                                                                                                          [[2]]

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$f($[[2]]$)=$[[0]]$\\cdot$ [[1]]

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Paso 2: Se debe sustuir los valores encontrados en el paso 1 en la función $f(x)=a \\cdot b^x$.
$f($[[2]]$)=$[[0]]$\\cdot$ [[3]]\n

Paso 3: Se debe calcular el valor de:

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                                                        [[2]]

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 [[1]]

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$f($[[2]]$)=$[[4]]\n

Paso 4: Se calcula el valor de:

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 [[0]]$\\cdot$ [[3]]

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Por tanto la respuesta correcta es: [[5]]

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