Write 4000 in scientific notation.
Answer
$$ 4000 = 4\cdot 10^{3} $$
Explanation
Step 1: Since 4000 do not have a decimal point, we will add one at the end of the number 4000.
4000.
Step 2: Move the decimal point from its current position (the black dot) to a position immediately to the right of the first nonzero digit (the red dot).
4.000.
Step 3: We moved the decimal point 3 spaces to the right. Therefore, the exponent on base 10 will be positive 3.Now we know that the:
Mantissa = 4.000 (which can be written as 4 )
Exponent = 3
So, the solution is:
$$4000 = \color{blue}{ 4 } \cdot 10^{ \color{red}{ 3 }}$$This page was created using
Scientific notation Calculator