\[\boxed{\mathbf{2.489}}\]
Пояснение.
Решение.
\[\textbf{а)}\ 0,588 \approx 0,59\]
\[2,062 \approx 2,06\]
\[3,850 = 3,85\]
\[9,3762 \approx 9,38\]
\[\textbf{б)}\ 0,0915 \approx 0,092\]
\[0,7549 \approx 0,755\]
\[2,4587 \approx 2,459\]
\[6,59012 \approx 6,\ 590\]