Saturday

December 20, 2014

December 20, 2014

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

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 8:17pmWell, 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 8:18pma) 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 11:15pmThe 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 ...

Algebra - Hello again, I am now working on trying to find the relation of x = 1...

Algebra - Hello. I am trying to figure out how to find the number of solutions ...

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 ...

Algebra 1 REPOST - Please Help! - I have been trying to figure this out for a ...

some algebra help (radicals) - I hope I am writing this down right.. I am trying...

math,algebra,help - I need help this is for homework this problem but i feel ...

Algebra 1A - Thanks Reiny,that is my only problem trying to figure out the ...