Day 3 Concepts Flashcards
- It is a locus of a point which
moves so that it is always
equidistant from a fixed point
called focus and a fixed line
called directrix.
parabola
It is a locus of a point which
moves so that the sum of its
distance from two fixed points
(foci) is constant.
ellipse
It is a locus of a point which
moves so that the difference of
its distance from two fixed
points (foci) is constant.
hyperbola
Parallel lines are also known as
inconsistent lines
Perpendicular lines are said to
both consistent and
independent
- Coinciding lines are said to be
a. both consistent and dependent
consistent lines
w/ one or infinitely many solutions
inconsistent lines
without solution
dependent lines
w/ infinitely many solutions
independent lines
with exactly one solution
Point P is randomly chosen
inside the square ABCD. Lines AP
and PB are then drawn. What is
the probability that angle APB is
obtuse?
D. pi/8
- A disease is known to affect 1
in 10,000 people. A screening
test for the disease shows a
positive result for 99% of the
people with the disease. The test
also shows positive for 2% of
people who do not have the
disease. Find the probability
that somebody is healthy given
that they have positive test
result?
A. 99.51%
A spider eats three flies a day.
Until he fills his quota, he has
an even chance of catching any
fly that attempts to pass. A fly
is about to make the attempt.
What are the chances of survival,
given that five flies have
already made the attempt today?
3/4
Assume that a single depth
charge has a probability of 1/2
of sinking a submarine, 1/4 of
damage and 1/4 of missing. Assume
also that two damaging explosions
sink the sub. What is the
probability that 4 depth charges
will sink the sub?
B. 251/256
Calculate f(^n)(x) for f(x) = x^n e^x at x = 0.
n!
Management is:
An art
Engineering is:
A science
Engineers can become good
managers only through
Effective career planning
If you are an engineer
wanting to become a manager, what
will you do?
A. Develop new talents
B. Acquire new values
C. Broaden your point of view
D. All of the above
D. All of the above
When an engineer enters
management, what is the most
likely problem he finds difficult
to acquire?
A. Learning to trust others
B. Learning how to work through
others
C. Learning how to take
satisfaction in the work of
others
D. All of the above
D. All of the above
What management functions
refer to the process of
anticipating problems, analyzing
them, estimating their likely
impact, and determining actions
that will lead to the desired
outcomes and goals?
A. Planning
key: process of
anticipating problems,
What refers to establishing
interrelationships between people
and things in such a way that
human and material resources are
effectively focused toward
achieving the goal of the company?
D. Organizing
key: interrelationships
What management function
involves selecting candidates and
training personnel?
Staffing
What management function
involves orienting personnel in
the most effective way and
channeling resources?
Directing
key: orienting personnel
