Question

Hi! I am trying to solve this question for a homework assignment, but I can’t figure out what the answer is. Can someone please help?

In a scientific journal, we read that a certain substance weighs 0,000,418 grams.
Write this number in scientific notation.

Answer 1

Explanation:

I am assuming that number began with a decimal point.

Count how many places the decimal must move to the right to get past the 4, in this case the decimal must move 5 places. This means you are multiplying by 10^5. So the number in scientific notation becomes

4.18X10^(-5)

Answer 2

4.18 × 10^ 2

Explanation: