Question

Standard form of 0.0000004 m​

Answer 1

Answer:

Standard form of 0.0000004 m is 4 × 10^-7 m

Answer 2

$\displaystyle \sf{ Standard \: form \: of \: \: 0.0000004 \: m = 4 \times {10}^{ - 7} \: \: m}$

Given :

0.0000004 m

To find :

Standard form of 0.0000004 m

Concept :

For any given number Standard form is a way to express the number .

It is generally used to express a large or a small number

The standard form of any given number is

$\sf = m\times {10}^{n}$

Where m is a number such that 1 ≤ m < 10 and n is the exponent of 10

Solution :

Step 1 of 2 :

Write down the given expression

Here the given expression is 0.0000004 m

Step 2 of 2 :

Express in standard form

$\displaystyle \sf{ 0.0000004 }$

$\displaystyle \sf{ = \frac{4}{10000000} }$

$\displaystyle \sf{ = \frac{4}{ {10}^{7} } }$

$\displaystyle \sf{ = 4 \times {10}^{ - 7} }$

$\displaystyle \sf{ Standard \: form \: of \: \: 0.0000004 \: m = 4 \times {10}^{ - 7} \: \: m}$

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