Question

Помогите с 1 номером

Answer 1

$sqrt{frac{245}{4}}cdotsqrt{frac{2,5}{2}}=sqrt{frac{245}{4}}cdotsqrt{frac{5}{4}}=frac{sqrt{245}}{sqrt{4}}cdotfrac{sqrt{5}}{sqrt{4}}=frac{sqrt{245}}{2}cdotfrac{sqrt{5}}{2}=frac{sqrt{245cdot5}}{4}=\=frac{sqrt{49cdot5cdot5}}{4}=frac{sqrt{7^2cdot5^2}}{4}=frac{7cdot5}{4}=frac{35}{4}$

Answer 2

35
4. 8,75 вот надеюсь помогло