Question

What is 0.000345 expressed in scientific notation?

3.45 × 102
3.45 × 104
3.45 × 10–2
3.45 × 10–4

Answer 1

3.45 x 10-4

Explanation:

Answer 2

`\quad \huge \quad \quad \boxed{ \tt \:Answer }`

Expression in scientific notation :

`\qquad \tt \rightarrow \:3.45 × {10}^(-4)`

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`\large \tt Solution \: :`

`\qquad \tt \rightarrow \: 0.000345`

`\qquad \tt \rightarrow \: 0.000345 * \cfrac{10000}{10000}`

`\qquad \tt \rightarrow \: (0.000345 * 10000) * \cfrac{1}{10000}`

`\qquad \tt \rightarrow \: 3.45 * \cfrac{1}{10 {}^(4) }`

`\qquad \tt \rightarrow \: 3.45 *{10 {}^( - 4) }`

`\textsf{Correct option - D}`

Answered by : ❝ AǫᴜᴀWɪᴢ ❞