Question

Помогите решить номера..

Answer 1

$1.\a)1.5 sqrt{0.36}+ frac{1}{2} sqrt{196}=1.5*0.6+0.5*14 =0.9+7=7.9\b)1.5-7 sqrt{ frac{25}{49} } =1.5-7* frac{5}{7} =1.5-5=-3.5\c)(2 sqrt{1.5} )^2=4*1.5=6\2.\a) sqrt{0.36*25}=0.6*5=3\b) sqrt{8} * sqrt{18} = sqrt{64}=8\c) sqrt{2^4*5^2}=2^2*5=20\d) frac{ sqrt{27} }{ sqrt{3} } = sqrt{ frac{27}{3} } = sqrt{9}=3\3.\a)x^2=0.64\ |{ {{x=-0.8} atop {x=0.8}} right. \OTBET:б0.8\b)x^2=17\|{ {{x=- sqrt{17} } atop {x= sqrt{17} }} right. \OTBET:б sqrt{17}$
$6.\ sqrt{x-2}=1|^2\x-2=1 \x=3\OTBET:3$
$4.\y^3 sqrt{4y^2}=2y^4\7a sqrt{frac{16}{a^2}} ,a textless 0......7a frac{4}{|a|}$
$5.\6.1 textless sqrt{38} textless 6.2$

Answer 2

№5 -?