Question

Срочно помогите!!!!!!!!​

Answer 1

Ответ:

30 ; 28 ; 3,75 ; 45.

Объяснение:

$1)\sqrt{0,25*75*48}=\sqrt{0,25*4*12*75}=\sqrt{1*12*3*25}=\sqrt{36*25}=\sqrt{36}*\sqrt{25}=6*5=30;$

$2)\sqrt{2*56*7}=\sqrt{2*8*7*7}=\sqrt{16*49}=\sqrt{16}*\sqrt{49}=4*7=28;$

$3) \sqrt{0,5*4,5*6,25}=\sqrt{0,5*0,5*9*2,5^{2}}=\sqrt{0,25*9*2,5^{2}}=\sqrt{0,25}*\sqrt{9}*\sqrt{2,5^{2}}=0,5*3*2,5=0,5*7,5=3,75;$

$4) \sqrt{5*15*27}=\sqrt{5*5*3*27}=\sqrt{25*81}=\sqrt{25}*\sqrt{81}=5*9=45;$