Answer:
4.5
Step-by-step explanation:
We can simplify ratios to one to find the answer
4 pounds is about 2 kilograms
2 pounds is about 1 kilogram
1 pound is about half a kilogram
9 pounds x 0.5 = 4.5
21 = 4.8
8 x 2.1 = 16.8 - 12 = 4.8
Zoom in I think I know this
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
T will travel 81 m/s because addin six to 21 gives you 27 so take that times three and you get 81 m/s hope this helps
