Blood Pressure Several research papers use a sinusoidal graph to model blood pressure. Assuming that a person's
heart beats 70 times per minute, the blood pressure P of an
individual after t seconds can be modeled by the function
P(t)
= 20 sin
(7Pie/3 *t)
+ 100
(a) In the interval [0, 1], determine the times at which the
blood pressure is 100 mmHg.
(b) In the interval [0,1], determine the times at which the
blood pressure is 120 mmHg.
(C) In the interval [0,1], determine the times at which the
blood pressure is between 100 and 105 mmHg.