Question

What is the scientific notation of 0.000042?

Answer 1

Sci. Notation= 4.2 x 10 to -5th power

Explanation:

1. Go to decimal and move between 4 and 2

2. the number of zeroes after the the initial place of the decimal is the power it goes to

3. you pass four zeroes and the 4 which gives you five places, and the -5th power

Hope this helps :)

Answer 2

4.2 × 10⁻⁵

Explanation:

The decimal point must be after the first non-zero digit.

⇒ 4.2

Multiply 4.2 by a number that results in 0.000042. That number is 0.00001 or 10⁻⁵.

⇒ 4.2 × 10⁻⁵