Answer:
1.8 hours i hope this helps
Step-by-step explanation:
Answer:
Midpoint is
Step-by-step explanation:
A line segment refers to line that has two endpoints.
Let
be the endpoints of a line segment.
Midpoint of the line segment is given by 
Take the given points as follows:

Midpoint of a line segment 

Answer:
Step-by-step explanation:
Prob at each second, a mosquito lands on your neck =0.5
Prob it bites/it lands = 0.2
Prob it does not bite/it lands = 0.8
Hence in one second prob for getting a bite = 
i.e. 1/100 chance of getting bitten in one second
In 100 seconds number of bites 
Expected time between successive bites = 100