Question

Express your answer in scientific notation. 1.8*10^-2 - 3.9*10^-3

Answer 1

Step-by-step explanation:

$= 1.8 \times {10}^{ - 2} - 3.9 \times {10 }^{ - 3} \\ = 18 \times {10}^{ - 3} - 39 \times {10}^{ - 4} \\ = 141 \times {10}^{ - 4 } \\ = 1.41 \times 10 { }^{ - 6}$

Answer 2

Answer:

1.41*10^-3

Step-by-step explanation:

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