Question

Preciso urgente... me ajudem Pfv

Answer 1

4.

6! . 8! / 9! . 5!
= 6. 5! . 8! / 9 . 8! . 5!
= 6/9
= 2/3

10.

v = s³
343 = s³
³√343 = s
7 = s

area = 6s²
a = 6 . 7²
a = 6 . 49
a = 294

11.

area = ㅠr (r+g)
= 3,14 . 10 (10 + 50)
= 3,14 . 10 . 60
= 1884 cm²

volume = 1/3.ㅠr²a
= 1/3. 3,14 . 10² . 40
= 4186,67 cm³

5.

n(s) = 25 + 30 + 16 + 24 = 85
preta ou branca = 24/85 + 30/85 = 54/85
vermelas, brancas
= 25/85 + 30/84
= 2100/7140 + 2550/7140
= 4650/7140
nao preta = (16+30+25)/85 = 71/85

8. area
= 2ㅠr (r+a)
= 2 . 3,14 . 10 (10+8)
= 1130,4 cm²

volume = ㅠr²a
= 3,14 . 10² . 8
= 2512 cm³