Question

СРОЧНО!!! найдите значение выражения: 1) 0,54 + 2(√4,84)^2 2) (3√4,41)^2 - (-2)^3 3) -0,2(√12)^2 + 3,45 4) -0,4 : √4,84 × 11

Answer 1

1)

0,54 + 2(√4,84)²  =

= 0,54 + 2*4,84 =

= 0,54 + 9,68 = 10,22,

2)

(3√4,41)² - (-2)³  =

= 9 * 4,41 - 8 =

= 39,69 - 8 = 31,69,

3)

-0,2(√12)² + 3,45  =

= -0,2*12 + 3,45 =

= -2,4 + 3,45 = 1,05,

4)

-0,4 : √4,84 × 11 =

= -0,4 : 2,2*11 =

= -0,4 : 24,2 =

= -4 : 242 = -4/242 = -2/121

Answer 2

1. 0,54 + 2(√4,84)^2

Let's solve this step by step:

First, let's calculate the square root of 4.84: √4.84 ≈ 2.2

Now, let's square 2.2: (2.2)^2 = 4.84

Next, multiply 4.84 by 2: 2(4.84) = 9.68

Finally, add 0.54 and 9.68: 0.54 + 9.68 = 10.22

Therefore, the value of the expression is approximately 10.22.

2. (3√4.41)^2 - (-2)^3

Let's solve this step by step:

First, let's calculate the cube root of 4.41: ∛4.41 ≈ 1.64

Next, multiply 3 by 1.64: 3(1.64) ≈ 4.92

Now, square 4.92: (4.92)^2 ≈ 24.21

Next, calculate (-2)^3: (-2)^3 = -8

Finally, subtract -8 from 24.21: 24.21 - (-8) = 32.21

Therefore, the value of the expression is approximately 32.21.

3. -0.2(√12)^2 + 3.45

Let's solve this step by step:

First, let's calculate the square root of 12: √12 ≈ 3.46

Now, let's square 3.46: (3.46)^2 ≈ 11.99

Next, multiply 11.99 by -0.2: -0.2(11.99) ≈ -2.398

Finally, add -2.398 and 3.45: -2.398 + 3.45 ≈ 1.052

Therefore, the value of the expression is approximately 1.052.

4. -0.4 : √4.84 × 11

Let's solve this step by step:

First, let's calculate the square root of 4.84: √4.84 ≈ 2.2

Next, divide -0.4 by 2.2: -0.4 / 2.2 ≈ -0.182

Now, multiply -0.182 by 11: -0.182 × 11 ≈ -2.002

Therefore, the value of the expression is approximately -2.002.