Question

Which describes the correct procedure when converting a number from scientific notation to standard notation if the power of 10 is -10? A). Move the decimal point to the left. B). Move the decimal point to the right C). Add 20 to the number D). Subtract 20 from the number.

Answer 1

Answer:

The correct answer is - option A. Move the decimal point to the left.

Explanation:

Given:

10^-10

We know, powers in minus in scientific notation it will convert as inverse in standard notation:

10^-1 = 1/10 = 0.1

Similarly,

10^-10 = 1/ 100 = 0.01

So, by the given example we can see decimal moves to the left (0.1 to 0.01).

Thus, the correct answer is option A. Move the decimal point to the left.