Срочно!!! Срочно!!! Срочно!!!

Question

Срочно!!!
Срочно!!!
Срочно!!!

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Answer 1

 3ab³=4  ⇒  ab³=4/3

1) -1,2ab³ = -1,2 * 4/3 = -6/5 * 4/3 = -8/5 = -1,6

2) 27a³b⁹ = (3ab³)³ = (3 * 4/3)³ = 4³ = 64

3) (-2/3)а²b⁶ = (-2/3)(ab³)² = (-2/3)(4/3)² = (-2/3) * 16/9 = -32/27 = -1 целая 5/27.