Question

Помогите люди добрые, срочно. Заранее благодаря, от души.

Answer 1

Ответ:

29,25

Пошаговое объяснение:

1) 5/9 + 2/9 =7/9

2) 13/2 • 9/7 = 117/14= 29,25

Answer 2

5^(2/3) / (а^(5/3) + а^(2/3) =
= 5^(2/3) / (3^(5/3) + 3^(2/3) =
= 5^(2/3) / ((3^(2/3)•(3^(3/3) + 1)) =
= 5^(2/3) / (3^(2/3) • (1+1) =
= 5^(2/3) / ((2 • 3^(2/3))
= (5/3)^(2/3)/2 =
= (³√(25/9)) / 2 = примерно 0,7