Question

6-4 Homework G

Answer 1

Answer: Distance of earth from star = $24.78\times10^{14}\text{ miles}$

Step-by-step explanation:

Given: A certain star is $4.2 \times 10^2$ light years from the Earth.

One light year is about $5.9 \times 10^{12}$ miles.

Distance of earth from star = $4.2\times10^2\times 5.9\times10^{12}$

$=4.2\times5.9\times10^2\times10^{12}\text{ miles}\\\\=24.78\times10^{2+12}\text{ miles}\\\\=24.78\times10^{14}\text{ miles}$

Hence, Distance of earth from star = $24.78\times10^{14}\text{ miles}$