Question

Alguém sabe pra hj? Plss prfv

Answer 1

a) 1,2 × 10¹

1,2 × 10

12

b) 0,04 × 110-¹

4/100 × (1/110)

1/25 × 1/110

1×1/25×110

1/2750 = 2750-¹ = 0,00036

c) 36 × 10²

36 × 100

3600 ---> 3,6 × 10³

d) 642,5 × 10-²

6425/10 × (1/10²)

1285/2 × 1/10²

1285/2 × 1/100

257/2 × 1/20

257×1/2×20

257/40 = 6,425