Question

PRECISO DE AJUDA URGENTE!!!
1) Calcule o valor de X para os casos a
seguir

a) X = 2.108.9.10-3

b) X = 8.109/4.103

c) X = 7.105 + 2.105

d) X = 4.104 - 8.104

Answer 1

a)

x = 2.10^8 . 9.10^-3

x = (2.9).10^8-3

x = 18.10^5

x = 1,8.10^6 ✓

b)

x = 8.10^9 / 4.10^3

x = (8/4).10^9-3

x = 2.10^6 ✓

c)

x = 7.10^5 + 2.10^5

x = (7+2).10^5

x = 9.10^5 ✓

d)

x = 4.10^4 - 8.10^4

x = (4-8).10^4

x = -4.10^4 ✓