Question

под буквой а!!!!!!!!

Answer 1

$a) \sqrt {1.69} \times 25 = \sqrt{42.25} = \sqrt{ \frac{169}{4} } = \frac{13}{2} = 6 \frac{1}{2} = 6.5 \\ b) \sqrt{8} \times \sqrt{18} = \sqrt{144} = 12 \\ v) \sqrt{3 {}^{4} } \times 5 {}^{2} = 3 {}^{2} \times 5 = 9 \times 5 = 45 \\ g) \frac{ \sqrt{27} }{ \sqrt{3} } = \sqrt{9} = 3$

Вот,все правильные на 100%