Question

8) (-0,9)2 – 1;9) (-2/3)3 -1.​

Answer 1

Ответ:

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Пошаговое объяснение:

ОТМЕТЬ КАК САМЫЙ ПРАВИЛЬНЫЙ ОТВЕТ ЗАРАНЕЕ БЛАГОДАРОЧКА

Answer 2

It seems like you want to evaluate two mathematical expressions:

1. (-0.9)^2 - 1
2. (-2/3)^3 - 1

Let's calculate these expressions one by one:

1. (-0.9)^2 - 1 (-0.9)^2 is equal to 0.81 (because squaring a negative number results in a positive number). So, 0.81 - 1 = -0.19

2. (-2/3)^3 - 1 (-2/3)^3 is equal to -8/27 (cubing a negative fraction results in a negative fraction). So, -8/27 - 1 = -8/27 - 27/27 = (-8 - 27)/27 = -35/27

So, the values of these expressions are:

1. (-0.9)^2 - 1 = -0.19
2. (-2/3)^3 - 1 = -35/27