You are riding a roller coaster when a shoe falls off your foot. The function y=300−16t2 represents the height y (in feet) of the shoe t seconds after it falls off your foot. The shoe lands on the top of an 11-foot-tall building. After how many seconds does the shoe hit the building?

Time to land on 11ft is 4.25 seconds

Step-by-step explanation:

Given

Required

Solve for t when height is 11ft

This implies that

So: substitute 11 for y in

Collect Like Terms

Express both sides as squares

Take square roots of both sides (ignore negative)

Solve for t

Hence, time to land on 11ft is 4.25 seconds

i would say c is the best answer, hope it's right!

good luck! =)

cutie~