Question

Write 4.272 x 10^-6 in decimal form.

Answer 1

Explanation:

10^-6 = a millionth of 1 = 0.000001

Change 4.272 into 4272

replace the last 4 digits to 4272

We get

0.004272

Answer 2

It will be easier for you to see if you first write it as a rational number, then as a decimal number.

`10^(-6)` means we take
`6th` power of
`10` , then take the reciprocal of it.

`6th` power of
`10` is
`1000000` , and reciprocal of it is
`(1)/(1000000)`

If we write it as a decimal number, the answer would be 0.000004272