Question

va rog ! toate ! dau coroana

Answer 1

1. 0,25

2. 9

3. (-∞, 2]

4. 327

5. 169

6. 6√3

7. 6

8. 32

Answer 2

1 ) 0 , 25

2 ) 9

3 ) x + 5 ≤ 7 l - 5

x ≤ 2

x ∈ { 2 , 1 , 0 , -1 , -2 ...... } = ( -∞ ; 2 ]

4 ) 327

5 ) A = πr² = 169π cm²

6 ) 12√3 / 2 = 6√3 cm

7 ) d =6√3 cm

d = l √ 3

l √3 = 6√3 => l = 6 cm

8 ) V = Ab × h /  3 = 16 × 6 / 3 = 16 × 2 = 32 cm³