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

An airplane is flying at a speed of 350 mi/h at an altitude of one mile and passes directly over a radar station at time t=0.

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.

## Answer this Question

## Related Questions

- Calc - An airplane is flying at a speed of 350 mi/h at an altitude of one mile ...
- pre cal - An airplane is flying at a speed of 350 mi/h at an altitude of one ...
- PRECALCULUS - An airplane is flying at a speed of 250 mph at an altitude of 4 ...
- Math - An airplane is flying at an altitude of 6 miles and passes directly over ...
- calculus - A plane flying horizontally at an altitude of 1 mi and a speed of 500...
- CALCULUS - A plane, flying horizontally at an altitude of 1 km and a speed of ...
- calculus - a plane flying horizontally at an altitude of 2 mi and a speed of 460...
- calculus - A plane flying horizontally at an altitude of 1 mi and a speed of 560...
- Airplane & Radar - (Airplane & Radar) An airplane is flying (horizontally) at ...
- calculus - A plane that is flying horizontally at an altitude of 6 kilometers ...