Posted by **Phillip** on Sunday, March 7, 2010 at 8:01pm.

Hello,

I'm trying to figure out how to do this problem, but don't know where to begin. I think some information is missing.

Blood Pressure:

The function P=120+30Sin 2pi(t) models the blood pressure (in millimeters of mercury) for a person who has a high blood pressure of 150/90; t represents seconds.

a. What is the pressure of this function?

b. How many heartbeats are there each minute?

- Precalc Repost -
**Damon**, Sunday, March 7, 2010 at 8:17pm
Well, that is the pressure

120+30 = 150 maximum

120 - 30 = 90 minimuum

look at that sin function

at t = 0, it is 30 sin 0 = 0

at t = 1, it is sin 2 pi = 0, a full period

so a period is one second

so there are 60 periods per minute

- Precalc Repost -
**Reiny**, Sunday, March 7, 2010 at 8:18pm
a) sub any time t to find the pressure at that moment.

b) the difference of time between a high pressure moment and the next high pressure moment would be one heartbeat.

so find the period of the function, which is 2pi/2pi = 1 sec

so there are 60 heartbeats per minute

- Precalc Repost -
**Maytas**, Wednesday, October 19, 2011 at 11:15pm
The function P(t) = 120 + 30 sin (2πt) models the blood pressure (in millimeters of mercury) for a

person who has a blood pressure of 150/90 (which is high); t represents seconds. What is the period of

this function?

## Answer This Question

## Related Questions

- pre-calc - Hello, I'm trying to figure out how to do this problem, but don't ...
- Statistic - In a population of over 15,000 patients, the distribution of ...
- Physics - How much higher must your blood pressure get to compensate for a 5% ...
- science - This year for my science fair project I will be testing to see if ...
- science - This year for my science fair project I will be testing to see if ...
- calculus 1 - Suppose that a person’s blood pressure at time t in seconds is ...
- rate of change - For a person at rest, the function p(t) = -20 cos(300˚t...
- BIOLOGY - Heat exhaustion caused by a person's exposure to heat can result in ...
- physics - Calculate the pressure in newtons per square meter due to whole blood ...
- bio - are blood pressures have differences between genders?explain your answer...

More Related Questions