Question

Write 0.00000046 in scientific notation.​

• A. $4.6\times {10}^{-7}$
• B. $4.6\times {10}^{-8}$
• C. $4.6\times {10}^{-7}$
• D. $4.6\times {10}^{-8}$

Answer 1

The correct option is A $4.6\times {10}^{-7}$

Move the decimal point to the right of 0.00000046 up to 7 places to get 4.6​

Since the number is less than 10 and decimal is moved to the right, so we write a negative exponent to 10.​
$\Rightarrow 0.00000046=4.6\times {10}^{-7}$
This is the required scientific notation.