The height of Zinger 1 after 6 seconds is given by the polynomial
[tex]-16 t^{2}+150t[/tex], for t = 6,
so the height is [tex]-16 *6^{2}+150*6=-576+900=324[/tex] (feet)
The height of Zinger 2 after 6 seconds is given by the polynomial
[tex]-16 t^{2}+165t[/tex], for t = 6,
so the height is [tex]-16 *6^{2}+165*6=-576+990=414[/tex] (feet)
At the moment the rockets explode, Zinger 2 is 414-324=90 (feet)
higher than Zinger 1.
Answer: 90 feet