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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?
\nA) $32$
\nB) $35$
\nC) $70$
\nD) $224$
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\n\n $a=$[[0]] \n$b=$[[1]] \n$x=$[[2]] \n | \nPaso 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. | \n
\n $f(x)=a \\cdot b^x$ \n[[2]] \n$f($[[2]]$)=$[[0]]$\\cdot$ [[1]] \n | \nPaso 2: Se debe sustuir los valores encontrados en el paso 1 en la función $f(x)=a \\cdot b^x$. | \n
$f($[[2]]$)=$[[0]]$\\cdot$ [[3]] | \n\n Paso 3: Se debe calcular el valor de: \n[[2]] \n[[1]] \n\n | \n
$f($[[2]]$)=$[[4]] | \n\n Paso 4: Se calcula el valor de: \n[[0]]$\\cdot$ [[3]] \n | \n
Por tanto la respuesta correcta es: [[5]]
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