Question

5.10.Найдите значение выражения: 1) 11 + 62 – 11 – 62 — 2 /2; 2) 9 + 4 2 – 9 – 4 2 + 2,5; 3) 2 (19 – 8 3 – з 19 + 8 3 – 2; 4) 7+43 + V7-43 - + 2/27 . Помогите пожалуйста Даю 45 БАЛЛОВ!

Answer 1

Ответ:

1)0 2)2.5

Объяснение:

1)0:2=0

2)0+2.5=2.5

3)2*(-2)=-4

4)не понимаю что написано

Answer 2

1. 11 + 62 – 11 – 62 ÷ 2 ÷ 2

Let's solve this step by step:

First, we perform the division: 62 ÷ 2 = 31 The expression becomes: 11 + 31 – 11 – 31 ÷ 2

Next, we perform the remaining subtraction and addition: 11 + 31 = 42 42 - 11 = 31 31 - 31 = 0

Finally, we divide 0 by 2: 0 ÷ 2 = 0

So, the value of the expression is 0.

2. 9 + 4^2 – 9 – 4^2 + 2.5

Let's solve this step by step:

First, we calculate the exponent: 4^2 = 16 The expression becomes: 9 + 16 – 9 – 16 + 2.5

Next, we perform the remaining subtraction and addition: 9 + 16 = 25 25 - 9 = 16 16 - 16 = 0 0 + 2.5 = 2.5

So, the value of the expression is 2.5.

3. 2(19 – 8^3 – √19 + √8^3) – 2

Let's solve this step by step:

First, we calculate the exponent: 8^3 = 512 The expression becomes: 2(19 – 512 – √19 + √512) – 2

Next, we calculate the square root: √19 ≈ 4.359 √512 ≈ 22.627

The expression becomes: 2(19 – 512 – 4.359 + 22.627) – 2

Next, we perform the remaining subtraction and addition: 19 - 512 = -493 -493 - 4.359 = -497.359 -497.359 + 22.627 = -474.732 2(-474.732) = -949.464 -949.464 - 2 = -951.464

So, the value of the expression is approximately -951.464.

4. 7 + 43 + √7 - √43 + 2/27

Let's solve this step by step:

First, we calculate the square root: √7 ≈ 2.646 √43 ≈ 6.557

The expression becomes: 7 + 43 + 2.646 - 6.557 + 2/27

Next, we perform the remaining addition and subtraction: 7 + 43 = 50 50 + 2.646 = 52.646 52.646 - 6.557 = 46.089 46.089 + 2/27 ≈ 46.157

So, the value of the expression is approximately 46.157.

I hope this helps! If you have any further questions, please let me know.