Question

Write each of these in scientific notation
1) 0.00000402
2) 1,900,000

Answer 1

See below in bold.

Explanation:

1. 0.00000402

= 4.02 * 10^-6 (Counting the digits after the decimal point until we get to the 4 gives us the -6).

2. 1,900,000

= 1.9 * 10^6 ( counting the number of digits after the 1 gives us 6).