Question

the table shows some data about earth. express earths radius in scientific notation.
(facts about earth
radius at equator 6,378.1 km
mass 5.8726×10^24 kg
volume 1,083,210,000,000 km^3)
km
(use scientific notation. use the multiplication symbol in the math palette as needed.)

Explanation:

Step1: Recall scientific - notation form

Scientific notation is $a\times10^{n}$, where $1\leqslant|a|\lt10$ and $n$ is an integer.

Step2: Rewrite 6378.1

Move the decimal point 3 places to the left to get $a = 6.3781$. Since we moved the decimal point 3 places to the left, $n=3$.
So, $6378.1 = 6.3781\times10^{3}$.

Answer:

$6.3781\times 10^{3}$