Question

Express in usual form 7.45×10^-4​

Answer 1

Answer:

,

Step-by-step explanation:

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Answer 2

Answer:

$\green{0.000745}$

Step-by-step explanation:

$7.45 \times {10}^{ - 4} \\ \\ = \frac{745}{100} \times \frac{1}{ {10}^{4} } \\ \\ = \frac{745}{100} \times \frac{1}{10 \times 10 \times 10 \times 10} \\ \\ = \frac{745}{100} \times \frac{1}{10000} \\ \\ = \frac{745}{1000000} \\ \\ = 0.000745$

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