Question

1 1) -1,2: .(-2): 4,5;2) 0,1:(-10) + 81:(-0,9):(-3).(-0,01);3) 4,4-2,4:(-0,24) + (-1212):(-12).​

Answer 1

Ответ:

1) –1,2: (-2) : 4,5= 0,6÷4,5=6/10÷4 5/10 =6/10÷45/10= 6/10*10/45= 6/45= 2/15

2) 0,1 :(-10) + 81 : (-0,9) : (-3) - (-0,01)= -1-72,9÷(-3)+0,01=-1+24,3+0,01=23,31

3) 4,4 – 2,4 : (-0,24) + (-1212):(-12).= 4,4+10-101=115,4

Answer 2

It looks like you've provided a set of mathematical expressions. Let's break them down one by one:

1. -1,2: .(-2): 4,5; This expression appears to be a bit unconventional and might contain some formatting issues. It seems like you're trying to perform some sort of operation with these numbers. Could you please clarify what you're trying to do here?

2. 0,1:(-10) + 81:(-0,9):(-3).(-0,01); Again, this expression is a bit unusual. It looks like you're using colons (:) and dots (.) to separate numbers. It's not a standard notation in mathematics. Could you provide more context or clarify what operation you're trying to perform?

3. 4,4-2,4:(-0,24) + (-1212):(-12). In this expression, it appears that you're performing some basic arithmetic operations. Let's break it down step by step:

a) 4,4 - 2,4 = 2 b) 2 * (-0,24) = -0.48 c) -1212 / -12 = 101

So, the final result is:

-0.48 + 101 = 100.52

If my interpretation is incorrect or if you could provide more context, I'd be happy to assist further.