A musician is playing a tuba. If she plays a note and holds it for a significant length of time, the air pressure near the opening of the tuba can be modeled by the following function. pt=101,325.8 - 0.1 cos163.1t

In this equation, pt represents the air pressure in pascals, and t is the time in seconds.
Find the following. If necessary, round to the nearest hundredth
Period of p :
Frequency of p:
Max air pressure:

scroll down to the response to "Daniela's" question 3 hours ago.