Question 730255
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An airplane is flying at a speed of 350 miles/hr at an altitude of one mile. 
The plane passes directly above a radar station at time t=0. 

a. Express the distance s(in miles) between the plane and the radar station 
   as a function of the horizontal distance d(in miles) that the plane has flown. 
b. Express d as a function of the time t (in hours) that the plane has flown. 
c. Use composition to express s as a function of t. 
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(a)  The distance under question (a) is  s = {{{sqrt(d^2+1)}}}  miles.


(b)  d = 350*t.


(c)  The distance under question (c) is  s = {{{sqrt(350*t^2+1)}}} miles.
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Solved. All questions are answered.