Answer:
0.6 km/hr
Step-by-step explanation:
Speed downstream: 13/5= 2.6 km/hr
Speed upstream: 7/5= 1.4 km/hr
Therefore, Velocity of current is: 1/2 (2.6-1.4) km/hr = 1/2(1.2) km/hr
The answer to this question is -11/12.. l hope it helped??
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Answer:
2
Step-by-step explanation:
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