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3 years ago

8

1.

1 answer:

Vladimir79 [104]3 years ago

7 0

Answer:

a) n = -3

Step-by-step explanation:

3.8 x 10^n = 0.0038

0.0038 = 38/10000 = 38/10^4 = 38 x 10^-4 = 3.8 x 10^-3

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