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The donation of electron density through sigma (σ) bonds of a molecule is called the:
a.
steric effect
b.
inductive effect
c.
nucleophilic effect
d.
resonance effect
Consider the following molecule:
Which statement is INCORRECT?
a.
The molecule has (R)- configuration.
b.
With the lowest (fourth) priority facing away from the viewer, a curved arrow drawn from the first (highest) priority group through the second priority group to third priority group points in a counterclockwise direction.
c.
The molecule has (S)- configuration.
d.
The highest priority group is OH and the lowest priority group is H.
Isaack buys a second-hand car from Reliable motors for R200,000. Isaack insures the car for R200,000 with Amazing Insurance Company.
Advise Isaack as to the nature of the insurance contract that he has concluded with Amazing Insurance Company. (7)
Your motorcycle is valued at R250,000. You insure the motorcycle with C Insurers for R250,000. You also decide the motorcicle with D Insurers for R250,000. On Sonday morning driving on a breakfeast run you damage the motorcycle by hitting a tree on the side of the road. The damage amounts to R250,000. Both insurers indicate that they rather compensate you instead of repairing the motorbike.
What amount of compenstation can you claim from C insurers and D Insurers? (10)
The absolute configuration of a chiral carbon is defined as R- or S- according to the Cahn-Ingold-Prelog rules. What is the CORRECT name for the following compound?
a.
(S)-3-methylheptane
b.
(R)-3-methylheptane
c.
(R)-2-ethylhexane
d.
(S)-2-ethylhexane
Using MATLAB complete the steps below and submit the required plots.
1) Load the observations, Cx Matrix, and Cn Matrix stored in the ASCIl data files 'observations.dat,
Cx_matrix.dat, and 'Cn_matrix.dat'. Plot the observed signal, y. (5 Points)
2) Solve for the 5 tap Wiener Filter Impulse Response, h. Plot the impulse response. (30 Points
3) For comparison plot the observations signal, y, and the ground truth signal, x, on the same
plot. You can load the ground truth from the file "true_states.dat". (30 Points)
4) Apply the Wiener Filter using MATLAB's "conv" tool. Plot the resulting state reconstruction and the
true state signal, x, on the same plot. (30 Points)
5) Compute the Mean Squared Error before and after applying the filter. (5 Points)
MSEbefore-2o-
MSEafter a-
Let z be the random variable representing the number of blue balls. Find the values of the random variable Z.
Two examples or experience you have encountered where by Form of address, greetings or gestures was misunderstood or used wrongly which created an unforgettable situation
A group of students got the following scores in an achievement test: 9, 12 15, 18, 21 and 24. Consider samples of size 3 can be drawn from this population.
B. Construct the sampling distribution of the resulting sample means
Write a program that does the following for 15 students:
Reads in 3 marks for each student, however, you need to make provision that the user
might be typing invalid values – when an invalid mark is entered, the user should be prompted to re-enter a valid mark. This should happen continuously until you have three valid marks for each student (valid marks are marks between 0 and 100; 0 and 100 included). Your prompt message to the user should indicate which number is being requested
Calculates and displays the highest mark for each student.
Finds and displays the highest mark in the class.
Adapt your code to also read in the name of each student, and add the name to the display
of the highest mark for each student
When displaying the overall highest mark, the name of the relevant student should also be
displayed.
Update your solution to make use of the getMark method. In this updated version, your prompt messages does
not have to indicate which mark is being requested.
One way of aiding low-income families is to increase the minimum wage. An alternative is to provide a direct grant of non-labor income. Compare the impact of these two options on work incentives.
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