Question

1)-25•23•(-0,4) 2)0,125•(-8)•(0,25)•(-4) 3)-8,47•5•(-200)•(-0,001) 4)5/9•(-3/4)•(1 4/5)•(-28) 5)-7/11•(2/13)•11/21•(-26)

Answer 1

Пошаговое объяснение:

1) -25*23*(-4/10)= -25*(-2/5)*23= сокращаем и получается 23*5*2=230

2) (125/1000)*(-8)*(25/100)*(-4)= (1/8)*(-8)*(1/4)*(-4)= сокращаем и получается 1.

3) -8,47*(-1000)*(-0,001)= -8,47

4) сократили и получили: (1/9)*3*14*7= (1/3)*14*7= 98/3 = 32 целых 2/3

5) сократили и получилось: 7*(2/13)* (1/21)*26= 7*2*(1/21)*2=2*(1/3)*2= 4/3= 1 целая 1/3

Answer 2

Let's solve the given expressions step by step:

1. -25 * 23 * (-0.4)

   Result: 460

2. 0.125 * (-8) * (0.25) * (-4)

   Result: -1

3. -8.47 * 5 * (-200) * (-0.001)

   Result: 8.47

4. (5/9) * (-3/4) * (1 4/5) * (-28)

   Before proceeding, let's convert the mixed number to an improper fraction: 1 4/5 = (5 * 1 + 4) / 5 = 9/5

   Now, continue with the calculations: (5/9) * (-3/4) * (9/5) * (-28)

   Multiply the fractions: (-5/6) * (-28)

   Result: 35

5. -7/11 * (2/13) * 11/21 * (-26)

   Multiply the fractions: (-14/143) * 11/21 * (-26)

   Multiply again: (-154/3003) * (-26)

   Result: 4

So, the results for each expression are:

1. 460
2. -1
3. 8.47
4. 35
5. 4