Coughing forces the trachea (windpipe) to contract, which in turn affects the velocity of the air through the trachea. the velocity of the air during coughing can be modeled by v = k(r – r)r2, 0 ≤ r < r, where k is a constant, r is the normal radius of the trachea, and r is the radius during coughing. what radius r will produce the maximum air velocity?

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )

replace   with   27   and simplify.

10 , 27 , 10 , 70 , 10 , 35 , 10 , 48

step-by-step explanation: