Question

помогите ПЛИЗ МАТЕМ......

Answer 1

вот.......................

Answer 2

$\sqrt{81}=\sqrt{9^{2} }=9\\\\\sqrt{64}=\sqrt{8^{2} }=8\\\\\sqrt{100}=\sqrt{10^{2} }=10\\\\\sqrt{0,16}=\sqrt{(0,4)^{2} } =0,4\\\\\sqrt{0,09}=\sqrt{(0,3)^{2} }=0,3\\\\\sqrt{0,25}=\sqrt{(0,5)^{2}}=0,5\\\\\sqrt{1,44}=\sqrt{(1,2)^{2}}=1,2\\\\\sqrt{4900}=\sqrt{70^{2}}=70\\\\\sqrt{6400}=\sqrt{80^{2}}=80$