Question

1) 2,3*(-8)-9,8 : (6,7-8,1) 2)(-1,6+3,64 : (-1,4)) : (-0,01) : (0,7) ПОЖАЛУЙСТАААА ОЧЕНЬ НУЖНО

Answer 1

Відповідь:

Покрокове пояснення:

1) 2,3*(-8)-9,8 : (6,7-8,1) = 2,3*(-8)-9,8:(-1,4)= -18,4+7= -11,4

2)(-1,6+3,64 : (-1,4)) : (-0,01) : (0,7) = (-1,6+(-2,6)) : (-0,01) : (0,7)=

=(-1,6-2,6) : (-0,01) : (0,7)= -4,2 : (-0,01) : (0,7)= 420 : 0,7= 600

Answer 2

1. Let's break down the first expression step by step:

2,3 * (-8) - 9,8 : (6,7 - 8,1)

First, let's perform the multiplication:

2,3 * (-8) = -18,4

Now, let's simplify the subtraction inside the parentheses:

6,7 - 8,1 = -1,4

Next, let's perform the division:

-9,8 : (-1,4) = 7

Finally, substitute the results back into the expression:

-18,4 - 7 = -25,4

Therefore, the value of the first expression is -25,4.

2. Now let's evaluate the second expression step by step:

(-1,6 + 3,64 : (-1,4)) : (-0,01) : (0,7)

First, let's simplify the addition inside the parentheses:

-1,6 + 3,64 = 2,04

Now, let's perform the division:

3,64 : (-1,4) = -2,6

Next, let's perform the division and simplification of the remaining parts:

-2,6 : (-0,01) = 260

260 : 0,7 = 371.42857142857144 (rounded to 14 decimal places)

Therefore, the value of the second expression is approximately 371.42857142857144.

Please note that the decimal separator used in the expressions is a comma (",") instead of a period (".") as it is commonly used in English.