Question

3^-2:(-3)^-3+0,3-1-(-5)^0​

Answer 1

Ответ: -4,7

Объяснение:

Answer 2

Let's break down the given expression step by step:

1. $3^{-2}$: This is equal to $1/(3^2)$, which is $1/9$.

2. $(-3)^{-3}$: This is equal to $-1/(3^3)$, which is $-1/27$.

3. $0,3$: This seems like a formatting issue. I assume you meant $0.3$, which is just $0.3$.

4. $(-5)^0$: Any non-zero number raised to the power of 0 is always 1. So, $(-5)^0$ is $1$.

Now, let's put everything together:

$3^{-2} : (-3)^{-3} + 0.3 - (-5)^0$

Substitute the calculated values:

$1/9 : -1/27 + 0.3 - 1$

Now, perform the operations:

$1/9 + (-1/27) + 0.3 - 1 = 0.111111111... + (-0.037037037...) + 0.3 - 1$

Approximating the decimal values:

$0.111 + (-0.037) + 0.3 - 1 \approx 0.374 - 1 \approx -0.626$

So, the final value of the expression is approximately $-0.626$.