POST TEST:
Write your answer in your notebook
1. Astronomy. Near the end of a sear's life the star will eject
zas, forming a planetary nebula The Ring Nebula is an
example of a planetary nebula. The volume V (in cubic
kilometers) of this nebula can be modeled by V = 19.01 >
1025)where is the age (in years) of the nebula. Write
the inverse model that gives the age of the nebula as a
function of its volume. Then determine the approximate
age of the Ring Nebula given that its volume is about 1.5 x
1038 cubic kilometers.
​