Question

A certain star is 3.5 x 10^2 light years from the Earth. One light year is about 5.9 x 10^12 miles. How far from the earth​ (in miles) is the​ star? Use Scientific Notation to answer.

Answer 1

`2.065 * 10^(15)`

Explanation:

`(3.5 * 10^(2))(5.9 * 10^(12)) \\ \\ =(3.5)(5.9)(10^(14)) \\ \\ =20.65(10^(14)) \\ \\ =2.065 * 10^(15)`