Question

(-4,1-0,42)+7 -2,9-(3,11-0,49) 7,4-(8,1-9,17)

Answer 1

(-4,1-0,42)+7= -3,68+7= 3,32

-2,9-(3,11-0,49)= -2,9-2,62= -5,52

7,4-(8,1-9,17)= 7,4-(-1,07)= 8,47

Answer 2

Let's break down the expression step by step:

1. (-4,1 - 0,42) = -4.1 - 0.42 = -4.52
2. 7 - 2.9 = 4.1
3. (3.11 - 0.49) = 2.62
4. 7.4 - (8.1 - 9.17) = 7.4 - (-1.07) = 7.4 + 1.07 = 8.47

Now, let's put it all together:

-4.52 + 4.1 - 2.62 + 8.47

Now, perform the additions and subtractions from left to right:

(-4.52 + 4.1) - 2.62 + 8.47 (-0.42) - 2.62 + 8.47

Now, continue:

-0.42 - 2.62 + 8.47 = -3.04 + 8.47

Finally:

-3.04 + 8.47 = 5.43

So, the result of the expression is 5.43.