Answer:
B: Integer
Step-by-step explanation:
I also did that khan academy and got it right
Answer:
42 meters
Step-by-step explanation:
Given
See attachment for complete question
Required
Calculate distance FC
FC is calculated as:

Where


Considering
, we have:
--- Pythagoras theorem
Where



and



So:




Take square roots of both sides

So:

Considering
, we have:
--- Pythagoras theorem
Where:
and 
So, we have:



Take square roots of both sides

So;

Recall that:



Answer:
18 below is a image hope I helped!
Step-by-step explanation:
There are two sides in a coin so the chance of getting tails is 1/2, which would be 0.5.
I'm not sure tho.