Solve each problem that uses a logistic function. As age increases, so does the likelihood of coronary

Question:

Solve each problem that uses a logistic function.

As age increases, so does the likelihood of coronary heart disease (CHD). The fraction of people x years old with some CHD is modeled by f(x) = 0.9 1 + 271e -0.122.x

(a) Evaluate ƒ(25) and ƒ(65) to the nearest hundredth. Interpret the results.

(b) At what age, to the nearest year, does this likelihood equal 50%?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For answer-question

College Algebra

ISBN: 978-0134697024

12th edition

Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

See More Books

Question Posted: Mar 09, 2019 05:48 AM

See More Questions

In a study published in Preventive Medicine (1991), researchers Stampfer and Colditz observed that women who underwent hormone replacement therapy (HRT) showed a lower risk of coronary heart disease...
In the Women's Health Initiative Dietary Modification Trial women were randomly assigned to an intervention or a control group. The intervention included counseling sessions designed to reduce fat...
The Seven Countries Study, conducted by Ancel Keys, was a long-term study of the relationship of cholesterol to coronary heart disease (CHD) mortality in men. The relationship was approximated by the...
Compute the length of the curve traced by r(t) over the given interval. r(t)= (t cos t, t sint, 3t), 0t 2
Integrated Waveguide Technologies (IWT) is a 6-year-old company founded by Hunt Jackson and David Smithfield to exploit metamaterial plasmonic technology to develop and manufacture miniature...
1. The NIU Chapter invited nonmember sorority women to participate in the hazing event by filling the pledges cups with vodka and directing them to drink it. Did these women owe a duty of care to the...
The torque needed to open a factory-sealed jar is about the same as the torque required to turn the wheel on a passenger car. You know that the force necessary to turn your cars steering wheel is...
MRE Sales is looking to acquire an ERP and has asked for your assistance. The company can purchase the system outright for $120,000 plus 5% sales tax, and delivery and install charges of $2,000. The...
Raner, Harris and Chan is a consulting firm specializing in information systems for medical and dental clinics. The firm has two offices-one in Chicago and one in Minneapolis. It classifies the...
You decided to run an experiment - improve current CTA on the in-app pricing page (1 experimental variation and one control group). Each month the pricing page is seen by 16,000 users. 800 of those...
Suppose a conservation campaign, together with higher rates, caused demand for electricity to increase at only 2% per year. Find the number of years, to the nearest tenth, before twice as much...
The height of a certain tree in feet after x years is modeled by (a) Make a table for starting at x = 10, and incrementing by 10. What appears to be the maximum height of the tree? (b) Graph and...
Consider the following information: Demand rate (D) = 1,000 units per hour Lead time (T) = 2 hours Container capacity (C) = 250 units Safety factor (x) = 15% a. How many kanban production cards are...
4. A rocket vehicle has an initial total mass of 1250 kg, of which 400 kg is the propellant. Propellant bum provides a steady flow of hot gases at a rate of 20 kg/s. This vehicle is launched from the...
Project: German Year 0: -$800,000 Year 1: $380,000 Year 2: $400,000 Year 3: $420,000 Year 4: $375,000 Year 5: $110,000 Year 6: $85,000 Project: Ukrainian Year 0: -$520,000 Year 1: $275,000 Year 2:...
What model of family therapy do you believe provides you with the most helpful therapeutic framework for working with addictive families consistent with your personal theoretical model and preferred...
Identify a piece of "fake" news. How did you determine that it was fake? Do you think that others came to the same conclusion or do you think they were "duped"? How do you think this impacted the...
______ ______ is an important step in the development of strategic alternatives and a contingency plan. a) Strategy analysis b) Risk assessment c) Strategic evaluation d) Evaluation analysis e)...
Suppose that the (external) damage done by pollution is known to be MD = 300 + 5Q, and the (private) cost and benefit are given by MC = 100 + 2Q and MB = D0 2Q, where D0 is not precisely known. a....
Sandcastles, Inc.s management has recently been looking at a proposal to purchase a new brick molding machine. With the new machine, the company would not have to buy bricks. The estimated useful...
In Exercises 121124, determine whether each statement makes sense or does not make sense, and explain your reasoning. I can use any positive number other than 1 in the change of- base property, but...
Explain the differences between solving log 3 (x - 1) = 4 and log 3 (x - 1) = log 3 4.
Describe the following property using words: log b b x = x.
a) Based on the information provided in the table below: i. Describe the impact of the cost behavior on economies of scale, constant returns to scale, and diseconomies of scale in each firm?...
Use the following information to answer questions below: Total current assets Total non-current assets Total current liabilities Long-term borrowings Share capital Revenue Gross profit Retained...
A Public Information Officer ( PIO ) for a public safety or emergency management agency might expect to spend what portion of his or her time on activities directly related to incident response or...

Solve each problem that uses a logistic function. As age increases, so does the likelihood of coronary

Question:

f(x) = 0.9 1 + 271e -0.122.x

Step by Step Answer:

a Among people age 25 65 have so...View the full answer

College Algebra

Students also viewed these Mathematics questions