Question

Which of the following expresses the number below in scientific notation? 0.00416

Answer 1

Answer:
`4.16 * 10^(-3)`

Step-by-step explanation:

Place the decimal point between the first two nonzero digits (4 and 1)

We get 4.16

The question is: how do we go from 4.16 back to the original number 0.00416?

We must move the decimal point 3 spots to the left.

The "3 spots left" corresponds exactly to the exponent of -3

Therefore,
`0.00416 = 4.16 * 10^(-3)`