Question

The number *N* of bacteria in a refrigerated food is
given by

N(T) = 10T^{2} − 20T + 500, 1 ≤ T ≤ 20

where *T* is the temperature of the food in degrees
Celsius. When the food is removed from refrigeration, the
temperature of the food is given by

T(t) = 3t + 2, 0 ≤ t ≤ 6

where *t* is the time in hours.

a) Find the composition (N ∘ T)(t).

b.) Find the time when the bacteria count reaches 650. (Round your answer to three decimal places.) 750

Answer #1

The number of bacteria in a refrigerated food product is given
by N(T)=20T2?46T+3, 3<T <33 where T is the
temperature of the food.
When the food is removed from the refrigerator, the temperature is
given by T(t)=2t+1.5, where t is the time in hours.
Find the composite function N(T(t)):
N(T(t))=
Find the time when the bacteria count reaches 15739. Give your
answer accurate to at least 2 decimal places.
Time Needed =

A given bacteria culture initially contains 1500 bacteria and
doubles every half hour. The number of bacteria p at a given time t
(in minutes) is given by the formula p(t)=1500e^(kt) for some
constant k. (You will need to find k to answer the following.)
a) Find the size of the bacterial population after 110
minutes.
b) Find the size of the bacterial population after 8 hours.

1. Solve the given initial value problem. dy/dt = (t^3 +
t)/(y^2); y(0) = 2 .
2. We know from Newton’s Law of Cooling that the rate at which a
cold soda warms up is proportional to the difference between the
ambient temperature of the room and the temperature of the drink.
The differential equation corresponding to this situation is given
by y' = k(M − y) where k is a positive constant. The solution to
this equation is given...

The temperature at a point (x,y,z) is given by
T(x,y,z)=200e−x2−y2/4−z2/9, where T is measured in degrees celsius
and x,y, and z in meters. There are lots of places to make silly
errors in this problem; just try to keep track of what needs to be
a unit vector. A. Find the rate of change of the temperature at the
point (0, -1, 2) in the direction toward the point (-1, 4, 2). b)In
which direction (unit vector) does the temperature...

The temperature, T, of a cup of tea is modelled by the
function T = 21 + 58.8(1.4)-x ,where T is measured in 0C (degrees
Celsius) and x is measured in minutes. The time starts to be
measured when the tea is poured into the cup.
1) Graph the function using
technology. Include a graph in your response.
2) Find the temperature of the tea in the cup in 0C
and 0F:
a) when the tea is poured into...

Question 11 pts
Which general statement about gases is NOT
correct?
The molecules of a pure gas are distributed evenly throughout
the container.
Gases are much less dense than liquids or solids
Molecules in a gas mixture can form layers according to their
densities
Gases can be compressed, even to the point of liquefaction
Flag this Question
Question 21 pts
Which example is the greatest pressure?
1.00 atm
101 kPa
760 mm Hg (= 760 torr)
All of the above...

read PV Versus Diesel: A Cost-Benefit Analysis in the Nexus of
Food and Fuel below and then answer the following questions: - What
is the problem? - What are the alternatives? - What are the base
case assumptions? - What measures do you suggest to compare the
alternatives? PV Versus Diesel: A Cost-Benefit Analysis in the
Nexus of food and fuel. U.S. Army provides field rations to forward
troops. After Desert Storm and Desert Shield, where some troops ate
packaged...

1. Write the corresponding letter of the distribution used to
conduct the test to answer the question or to find the probability
requested in the blank to the left of the given information. You
will only use each letter once.
a. Student’s T
b. Standard Normal
c. Chi-Square
d. Binomial
e. Poisson
_________________Suppose that a doctor claims that 17 year olds
have an average body temperature that is warmer than the commonly
accepted average human temperature of µ = 98.6...

Analysis: This section should include the issue register as a
bare minimum, but may include also why-why diagrams, a Pareto
chart, a waste table and/or value-added analysis table. Flow
analysis or simulation of this case study might be possible but
might require making a lot of assumptions given the provided
data.
The first part of the project:
Introduction
Walmart has continued to retain
the top position on the Fortune 500 list for a consecutive fifth
year. The brand has...

Please read the article and answear about
questions.
Determining the Value of the Business
After you have completed a thorough and exacting investigation,
you need to analyze all the infor- mation you have gathered. This
is the time to consult with your business, financial, and legal
advis- ers to arrive at an estimate of the value of the business.
Outside advisers are impartial and are more likely to see the bad
things about the business than are you. You should...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 1 minute ago

asked 5 minutes ago

asked 21 minutes ago

asked 28 minutes ago

asked 45 minutes ago

asked 54 minutes ago

asked 54 minutes ago

asked 54 minutes ago

asked 58 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago