The answer is the first one
Answer:
-8y^2+9y-45
Step-by-step explanation:
symbolab.com
I think division, at least that's how I wrote it in school
Answer: P= QRS
#edmentumlivesmatter
Step-by-step explanation:
The volume of a sphere of radius r is given by

For your given conditions, the volume of 1/2 a sphere becomes

Seems to match your 2nd choice:
... 1 over 24 over 322 over 7(83)