Question

(1 point) Let P(t) be the performance level of someone learning a skill as a function of the training time t. The derivative dPdt represents the rate at which performance improves. If M is the maximum level of performance of which the learner is capable, then a model for learning is given by the differential equation

dP/dt=k(M−P(t))

where k is a positive constant.

Two new workers, Jim and Andy, were hired for an assembly line. Jim
could process 11 units per minute after one hour and 13 units per
minute after two hours. Andy could process 10 units per minute
after one hour and 16 units per minute after two hours. Using the
above model and assuming that P(0)=0, estimate the maximum number
of units per minute that each worker is capable of
processing.

Jim:

Andy:

Answer #1

Let x(t) ∈ [0,1] be the fraction of maximum capacity of a
live-music venue at time t (in hours) after the door opens. The
rate at which people go into the venue is modeled by
dx dt = h(x)(1−x),
(1) where h(x) is a function of x only. 1. Consider the case in
which people with a ticket but outside the venue go into it at a
constant rate h = 1/2 and thus dx/dt = 1/2 (1−x).
(a) Find...

1
The Problem: Drugs in
Series[1]
One of the physician’s responsibilities is to give medicine
dosage for a patient in an effective manner. Two mathematical
techniques help physicians analyze the concentration of drug is the
bloodstream of a patient: the exponential decay model (EDM) and the
Geometric Series and its Formula (GSF). In this problem, we will
analyze the situation where a drug is administered intravenously
and that the concentration of the drug in the bloodstream jumps
almost immediately to...

Item 1
In the case below, the original source material is given along
with a sample of student work. Determine the type of plagiarism by
clicking the appropriate radio button.
Original Source Material
Student Version
I accept the point that whenever learning occurs, some medium or
mix of media must be present to deliver instruction. However,
if learning occurs as a result of exposure to any media,
the learning is caused by the instructional method embedded in the
media presentation....

Item 1
In the case below, the original source material is given along
with a sample of student work. Determine the type of plagiarism by
clicking the appropriate radio button.
Original Source Material
Student Version
In contrast to the transmittal model illustrated by the
classroom lecture-note taking scenario, the constructivist model
places students at the center of the process--actively
participating in thinking and discussing ideas while making meaning
for themselves. And the professor, instead of being the
"sage on the...

Item 1
In the case below, the original source material is given along
with a sample of student work. Determine the type of plagiarism by
clicking the appropriate radio button.
Original Source Material
Student Version
A communication channel is the means by which messages
get from one individual to another. The nature of the
information-exchange relationship between a pair of individuals
determines the conditions under which a source will or will not
transmit the innovation to the receiver and the...

Item 1
In the case below, the original source material is given along
with a sample of student work. Determine the type of plagiarism by
clicking the appropriate radio button.
Original Source Material
Student Version
There is a desperate need for theorists and researchers
to generate and refine a new breed of learning-focused
instructional design theoriesthat help educators and
trainers to meet those needs, (i.e., that focus on learning and
that foster development of initiative, teamwork, thinking
skills, and diversity)....

1. Willow Brook National Bank operates a drive-up teller window
that allows customers to complete bank transactions without getting
out of their cars. On weekday mornings, arrivals to the drive-up
teller window occur at random, with an arrival rate of 6 customers
per hour or 0.1 customers per minute. Also assume that the service
times for the drive-up teller follow an exponential probability
distribution with a service rate of 54 customers per hour, or 0.9
customers per minute. Determine the...

1. What is an ISP (Integrated Service Provider) for supply
chains? (1 point)
A. A consultant agency which integrates the supply chain for
companies
B. A 2 PL or a 3PL, but not a 4PL
C. A company supplying transportation and warehousing
services
D. A logistics service company specialized in suppling VAS (value
added
services)
2. What characterizes a 4 PL? (1 point)
A. They are non-asset based and provides integrated services
primarily
supplied by asset based providers, for example...

1. Answer EITHER part (a) OR part (b). (a) A gas scrubber on an
oilrig discharged gas periodically such that an accumulation of
hydrocarbon gas nearby had occurred. A contractor welder was
dispatched to a job immediately adjacent to the area and it being a
shift change and personnel unavailable temporarily, the welder
decided to commence welding. As a consequence, an incident
occurred. Describe briefly: (i) what you imagine was the incident
including any hazards existing prior to or during...

These tests are intended for undergraduate students in
college or those under 18 years of age.
Read these directions carefully!
The below test includes 10 questions, randomly selected from a
large inventory. Most questions will be different each time you
take the test,
You must answer at least 9 out of 10 questions correctly to
receive your Certificate.
You have 40 minutes to complete each test, and you must answer
all 10 questions in order to to see your results....

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