Answer:
and 
Step-by-step explanation:
The given ellipse has equation:
.
The center of this ellipse is (h,k)=(0,2)
We use the equation:
to determine the foci.
The directrices are given by 


and 
The equation of the directrices are:
and 
The correct answer is D
There are none that work, the only close two are 3 and 24 + 2 and 25, but they multiply to 72 and 50, but if you can use decimals, you could use 2.445+24.555
Answer:
1st option
Step-by-step explanation:
there are 100 ÷ 2 = 50 , 2 minute intervals in 100 minutes, then
amount of water = 50 × 8000 = 400,000 gallons