t=-(ln(2))/(ln(298/500))*8

解

t = - \frac{ln ( 2 )}{ln ( \frac{298}{500} )} \cdot 8

t = - \frac{8 ln ( 2 )}{ln ( \frac{149}{250} )}

十進法表記

t = 10.71501 \dots

解答ステップ

t = - \frac{ln ( 2 )}{ln ( \frac{298}{500} )} \cdot 8

簡素化

- \frac{ln ( 2 )}{ln ( \frac{298}{500} )} \cdot 8 : - \frac{8 ln ( 2 )}{ln ( \frac{149}{250} )}

t = - \frac{8 ln ( 2 )}{ln ( \frac{149}{250} )}