Question

The average distance of the Moon from Earth is about 384,400 kilometers. Write this number in scientific notation.

Answer 1

Answer:

$3.844 * 10 ^ 5$

Step-by-step explanation:

Scientific notation is of the form $N * 10^a$. Where N is a number $1 \leq N < 10$.

So in this case we need to move the decimal place to the left, in order to create such a number.

By moving the decimal place to the left we get: 3.84400

We moved the decimal to the left 5 times, so our value of $a = 5$ and $N = 3.84400$

Therefore scientific notation is: $3.844 * 10 ^ 5$