Question

Responda a função exponencial a seguir;

Answer 1

Explicação passo-a-passo:

$\sf 250=125\cdot\left(\dfrac{1}{2}\right)^x$

$\sf \left(\dfrac{1}{2}\right)^x=\dfrac{250}{125}$

$\sf \left(\dfrac{1}{2}\right)^x=2$

$\sf \left(\dfrac{1}{2}\right)^x=\left(\dfrac{1}{2}\right)^{-1}$

Igualando os expoentes:

$\sf x=-1$