Question

|-81|– |45| +|-21|; 2| |-1,2:|0,8|+|-1| |2|срочно​

Answer 1

Ответ:

Пошаговое объяснение:

|-81| - |45| + |-21| = 81 - 45 + 21 = 57

1) |-1,2| : |0,8| = 1,2 : 0,8 = 1,5

2) 1,5 + |-1| = 1,5 + 1 = 2,5

Answer 2

1)Все что в модулях неможет быть с знаком -ю
тогда мы делаем 81-45+21= 57
2) То-же самое. 1.2/0.7+1= 2.71428571429 приблизительно 3

Answer 3

It looks like you've provided a mathematical expression that needs to be solved. Let's break it down step by step.

Given Expression:

The given expression is: -81 - 45 - (-21) + 2 - (-1.2) / 0.8 + (-1) + 2

Solution:

1. Start by simplifying the expression within the parentheses: - -(-21) equals 21. - -(-1.2) equals 1.2.

2. Now, perform the division: - 1.2 / 0.8 equals 1.5.

3. Finally, add and subtract the numbers: - -81 - 45 - 21 + 2 - 1.5 - 1 + 2 equals -145.5.

So, the solution to the given expression is -145.5.

I hope this helps! If you have any more questions or need further assistance, feel free to ask.