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November 20, 2014

November 20, 2014

Posted by **Chelsea** on Tuesday, September 21, 2010 at 1:44pm.

a) Express the horizontal distance d (in miles) that the plane has flown as a function of t.

b) Express the distance s between the plane and the radar station as a function of d.

I used the pythagorean theorem to get 1^2 + (350t)^2= sqrt of (1^2+d^2)^2

Is that right? If I solve for t it gives me zero.

c) Use composition to express s as a function of t.

Please Help. Explanations also would be nice, so I can see how to do it.

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