Question

Обчисліть 5.-3*(-7)+78:(-5,4+1,5)6.(1,56:(-1,3)+0,4):(-0,02)Відповідь має бути довга срочно!!!!!!!​

Answer 1

Пошаговое объяснение:

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Answer 2

Calculations

To calculate the given expressions, let's break it down step by step:

1. 5 - 3 * (-7) - First, we calculate the value inside the parentheses: -3 * (-7) = 21 - Then, we subtract 21 from 5: 5 - 21 = -16

2. 78 / (-5.4 + 1.5) - First, we calculate the value inside the parentheses: -5.4 + 1.5 = -3.9 - Then, we divide 78 by -3.9: 78 / (-3.9) = -20

3. (1.56 / (-1.3) + 0.4) / (-0.02) - First, we calculate the value inside the first set of parentheses: 1.56 / (-1.3) = -1.2 - Then, we add 0.4 to -1.2: -1.2 + 0.4 = -0.8 - Finally, we divide -0.8 by -0.02: -0.8 / (-0.02) = 40

So, the results of the given expressions are: 1. 5 - 3 * (-7) = -16 2. 78 / (-5.4 + 1.5) = -20 3. (1.56 / (-1.3) + 0.4) / (-0.02) = 40

These calculations are based on the provided mathematical expressions and the standard order of operations.

Conclusion

The results of the given expressions are: 1. 5 - 3 * (-7) = -16 2. 78 / (-5.4 + 1.5) = -20 3. (1.56 / (-1.3) + 0.4) / (-0.02) = 40