1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anastaziya [24]
3 years ago
12

As baby boomers enter their golden years, the number of people afflicted with Alzheimer's disease is expected to rise dramatical

ly. In a study published in the Journal of Neurology, the number of people with Alzheimer's disease in the United States age 65 years and over is projected to be
N(t) = 0.00525t² + 0.075t + 4.7 (0 ≤ t ≤ 4)

millon in decate t, where t = 0 corresponds to 2010.

(a) What is the projected number of people with Alzheimer's disease in the United States age 65 and over in 2020? (Round your answer to four decimal places.)
_________ million
(b) How fast is the number of people with Alzheimer's disease in the United States age 65 years and over projected to grow in 2020?
_________ million
(c) How fast is the rate of growth of people with Alzheimer's disease in the United States age 65 years and over projected to change in the period covered by the study?
_________ million per decade per decade.
Mathematics
1 answer:
dybincka [34]3 years ago
4 0

Answer:

Step-by-step explanation:

Given that the number of people with Alzheimer's disease in the United States age 65 years and over is projected to be

N(t) = 0.00525t^2 +0.075t+4.7,(0 ≤ t ≤ 4)

where N is in millions where year 2010 corresponds to t=0

For 2020, 10 years lapsed hence t= 1

a) N(1) = 0.00525(1)^2 + 0.075(1) + 4.7\\=4.78025

So 4.78025 million people

b) Growth = N(1)-n(0) =0.08025 million

c) N(4) = 5.084

Average rate of change = (5.084-4.7)/4 =0.096 million per decade

You might be interested in
13 of the 18 players on the varsity soccer team are seniors. What percent of the players on the team are not seniors?
N76 [4]
They are about 27 percent that are not seniors 
4 0
3 years ago
Read 2 more answers
Tamara is at the store buying pencils. There is a package with 4 pencils that costs $6 or a package with 5 pencils that costs $7
Mkey [24]

In order to determine the cost of each pencil we have to divide the total cost for the package of pencils by the number of pencils contained

For the 4 pencils box:

Cost per pencil = Total cost/number of pencils

Cost per pencil = 6/4 = 1.5

Similarly, for the 5 pencils package:

Cost per pencil = 7/5 = 1.4

As you can see, the $7 package is better to buy, because each pencil costs $1.4, then, option A is the correct answer

8 0
1 year ago
Here are the two arguments you will be debating: Argument A: There is a need for students to understand and be able to construct
igomit [66]
The appropriate response is B. The contend that there is no requirement for understudies to utilize a compass and straightedge, and every single geometric development ought to be finished utilizing a drawing program is the wrong explanation since the power to control drawing programs is just open in a few spots. Not everyone would have the capacity to learn geometry in light of the fact that not everyone can have power. Everyone on the planet would not have a similar opportunity to learn geometry if just drawing programs had the information that we have today.
4 0
3 years ago
What is the volume of this object?
Nastasia [14]

Answer:

19

Step-by-step explanation:

(Assuming that each cube is 1 unit), the volume is 5 + 6 + 8 which equals 19

7 0
2 years ago
How do you get the answer to 4x+10=-26
s2008m [1.1K]
4x = -36  Subtract 10 from both sides
x = -9  Divide by 4 on both sides
6 0
3 years ago
Read 2 more answers
Other questions:
  • Ben and Susan are truck drivers who start at the same location. Ben drives 300 miles due west and Susan drives 160 miles due sou
    15·1 answer
  • Does a negative times a negative always equal a positive
    6·2 answers
  • Danny, John and Morgan are collecting donations for the schools' basketball team. Danny wants to
    11·1 answer
  • If Jamie is riding at 14 mph and cori is riding at 0.04km per minute, how far will each of yjem bike in two hours? 1 mile = 1.61
    12·2 answers
  • Which do you think is the best description of the area of the room? (circle your choice.)
    10·1 answer
  • How many 0.2 liters glasses of water are contained in a 3.6 liter pitcher
    7·1 answer
  • A subway token has a radius of 1 centimeter. What is the token's area? Use 3.14 for ​.
    7·1 answer
  • How many tenths are in 8.32?
    8·2 answers
  • 5x + 10 = 15<br> 1. 3<br> 2. 1<br> 3. 5 <br> 4. 25
    10·1 answer
  • Use SAS to explain why ABC = DBC.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!