Question

решите срочно нужно на завтра,правильно решите даю 50 пк.

Answer 1

$sqrt{16} + sqrt{100} =4+10=14 \ sqrt{0.25} - sqrt{ frac{1}{64} } =0.5- frac{1}{8 } =0.5-0.125=0.375$

$-3 sqrt{0.49} - frac{1}{8} sqrt{0.64} =-3cdot 0.7-frac{1}{8}cdot 0.8=-2.1-0.1=-2,2 \ 0.4 sqrt{0.04} + sqrt{4^2+33} =0.4cdot0.2+ sqrt{16+33} = \ =0.08+ sqrt{49} =0.08+7=7.08$

$4 sqrt{0.49} - sqrt{4cdot5^2-6^2} =4 cdot0.7 - sqrt{4cdot25-36} = \ =2.8 - sqrt{64} =2.8 - 8=-5.2 \ sqrt{1 frac{17}{64} } - sqrt{0.5^2-0.3^2} + frac{11}{40} = \ =sqrt{ frac{81}{64} } - sqrt{0.25-0.09} +0.275 = frac{9}{8} - sqrt{0.16} +0.275 = \ = frac{9}{8} - sqrt{0.16} +0.275 =1.125-0.4+0.275=1$

$frac{1}{7} sqrt{6.25} + sqrt{3(0.4^2+0.11)} = frac{1}{7} cdot2,5+ sqrt{3(0.16+0.11)} = \ =frac{2.5}{7}+ sqrt{3cdot0.27} = frac{2.5}{7}+ sqrt{0.81} = frac{2.5}{7}+ 0.9= frac{2.5+0.9cdot7}{7}=frac{8.8}{7}$

$0.4 sqrt{441} : sqrt{6.25} - sqrt{2.56} = 0.4cdot21 : 2.5- 1.6= \ =8.4 : 2.5- 1.6=3.36- 1.6=1.76$

Answer 2

можете объяснить 2 откуда взялось 0,375

Answer 3

Решение на фото, удачи тебе :)