(-5,-1)
Would be ur answer!!
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Answer:
Option A. 
Step-by-step explanation:
we know that
The volume of the cylinder is equal

where
r is the radius of the base of cylinder
h is the height of the cylinder
we have


substitute


C reflex because it goes over 180 degrees!
Answer:

Step-by-step explanation:
Given : 
To Find : Which represents the empirical formula for
?
Solution:
Definition of Empirical Formula - A formula that gives the simplest whole-number ratio of atoms in a compound.

To reduce it in simplest form
Divide the subscript numbers by 3
So, the resultant : 
Thus the empirical formula for
:
