Ok so ummmm idk how to speck in that but well ummmmm idk
Answer:

Step-by-step explanation:
Let the function of quantity in the lung of air be A(t)
So 
so, A(t) = Amax sin t + b
A(t) = 2.8t⇒ max
A(t) = 0.6t ⇒ min
max value of A(t) occur when sin(t) = 1
and min value of A(t) = 0
So b = 0.6
and A(max) = 2.2

at t = 2 sec volume of a is 0.6
So function reduce to

and t = 5 max value of volume is represent
so,

when t = 5

so the equation becomes

Answer:
Um we can’t see anything it’s just white
Step-by-step explanation:
Answer:
; 
; 
; 
Step-by-step explanation:
For a right angled triangle with one of its angle α (alpha) :-
__________________________________________________
According to the question ,
1) When α (alpha) = d
2) When α (alpha) = e
Answer:
82%
Step-by-step explanation:
Multiply 25*4 to get 100.
Then multiply 20.5*4 because what you do to one side you have to do for the other.
You end up with 0.82 or 82%