Question

срочно помогате !!! ц

Answer 1

Ответ:

$a)\;\;2\sqrt{256}-5\sqrt{0.81} = 2*16-5*0.9 = 27.5\\\\b)\;\;2.7+5\sqrt{\frac{16}{25}}=2.7+5*\frac{4}{5}=6.7\\\\c)\;\;(4\sqrt{0.25})^2=2^2=4$