Question

2)|-13,7|-|-6,9|=3)|-4,3|*|-5,7|=4)|-7/8|-|5/12|=5)|-48|:|-0,6|=

Answer 1

Ответ:

2) |-13,7| - |-6,9| = 6,8 или -6,8

3) |-4,3|*|-5,7|= 24,51

4) $|-\frac{7}{8}|-|\frac{5}{12}| = |-\frac{7}{8}^3|-|\frac{5}{12}^2| = |-\frac{21}{24}|-|\frac{10}{24}|=\frac{11}{24}$ или $-\frac{31}{24}$

5) |-48|:|-0,6| = 80

Answer 2

Let's solve each of the given expressions step by step:

1. |-13,7|-|-6,9| To evaluate this expression, we need to find the absolute value of |-13,7| and then subtract the absolute value of |-6,9|.

|-13,7| is the absolute value of -13.7, which is 13.7. |-6,9| is the absolute value of -6.9, which is 6.9.

So, the expression becomes: 13.7 - 6.9 = 6.8

Therefore, the value of the expression |-13,7|-|-6,9| is 6.8.

2. |-4,3| * |-5,7| To evaluate this expression, we need to find the product of the absolute values of |-4,3| and |-5,7|.

|-4,3| is the absolute value of -4.3, which is 4.3. |-5,7| is the absolute value of -5.7, which is 5.7.

So, the expression becomes: 4.3 * 5.7 = 24.51

Therefore, the value of the expression |-4,3| * |-5,7| is 24.51.

3. |-7/8| - |5/12| To evaluate this expression, we need to find the difference between the absolute values of |-7/8| and |5/12|.

|-7/8| is the absolute value of -7/8, which is 7/8. |5/12| is the absolute value of 5/12, which is 5/12.

So, the expression becomes: 7/8 - 5/12

To subtract these fractions, we need a common denominator, which is 24. Multiplying the numerator and denominator of 5/12 by 2, we get:

7/8 - (5/12 * 2/2) = 7/8 - 10/24 = 7/8 - 5/12 = (21 - 10)/24 = 11/24

Therefore, the value of the expression |-7/8| - |5/12| is 11/24.

4. |-48| : |-0,6| To evaluate this expression, we need to find the quotient of the absolute values of |-48| and |-0,6|.

|-48| is the absolute value of -48, which is 48. |-0,6| is the absolute value of -0.6, which is 0.6.

So, the expression becomes: 48 / 0.6 = 80

Therefore, the value of the expression |-48| : |-0,6| is 80.

I hope this helps! Let me know if you have any further questions.