Question

O valor de y=log350-log7 é:

Answer 1

$log_{b}(x)-log_{b}(y)\rightleftharpoons log_{b}\left(\dfrac{x}{y}\right)$
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$y=log~350-log~7\\\\y=log~\left(\frac{350}{7}\right)\\\\y=log~50\\\\y=log~\left(\frac{100}{2}\right)\\\\y=log~100-log~2\\\\\boxed{\boxed{y=2-log~2}}$