Question

The function p = 100 − 20 cos 7πt 3 approximates the blood pressure p (in millimeters of mercury) at time t (in seconds) for a person at rest. (a) find the period of the function. Sec g

Answer 1

Answer:

The period of 6/7 seconds or 0.857 seconds.

Explanation:

The period of any given trigonometric function is given by:

$y=a cos(bx+c)d\\\\Period:\\\\T=\frac{2\pi }{b}$

In this function b is $\frac{7\pi }{3}$

So, the period for the given function is calculated as follows:

$T=\frac{2\pi }{b}=\frac{2\pi }{\frac{7\pi }{3}}=\frac{6}{7} s=0.857s$