Question

Помогите пожалуйста срочно на листике

Answer 1

$sqrt{0,81times 625}-sqrt{2frac{1}{4}}=0,9times25-sqrt{frac{9}{4}}=22,5-frac{3}{2}=22,5-1,5=21$

$sqrt{0,49times 225}-sqrt{1frac{11}{25}}=0,7times 15-sqrt{frac{36}{25}}=10,5-frac{6}{5}=10,5-1,2=9,3$

$sqrt{2frac{14}{121}times frac{4}{25}}-1=sqrt{frac{256}{121}times frac{4}{25}}-1=frac{16}{11}times frac{2}{5}-1=frac{32}{55}-frac{55}{55}=-frac{23}{55}$

$frac{sqrt{147}}{sqrt{48}} =sqrt{frac{147}{48}}=sqrt{frac{49}{16}}=frac{7}{4}=1,75$