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daniela jones

daniela j.

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Question 3 (25 Marks) Shares X and Y have the following historical returns: Between 2019 and 2025, the annual returns for Share X and Share Y varied significantly. In 2019, Share X recorded a return of -2%, while Share Y had a slightly better performance at -1.5%. In 2020, Share X improved to a 3% return, whereas Share Y declined further to -2.8%. Both shares saw strong growth in the following years, with Share X achieving 19.45% and 39.63% returns in 2021 and 2022 respectively, and Share Y outperforming with 21.39% and 45.78% in the same years. In 2023, Share X delivered a return of 18.33%, compared to Share Y's 9.81%. The positive trend continued into 2024, with Share X returning 34% and Share Y 31.90%. In 2025, Share X posted a 10% return, while Share Y slightly outperformed with a return of 11%. Required: Calculate which of the two shares had the most volatile returns over the seven -year period.

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A 30-g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. What is the momentum of the car? 360 gâ‹…cm 1848 cm2/s 4620 gâ‹…cm/s 8250 gâ‹…cm

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17. There are eight students in MATH 5351. Suppose each of the eight flips a fair coin ten times and counts the number of heads. Your professor then takes the number of heads flipped by each student and then puts these eight numbers in an ordered list. What is the probability that the least number on the list is 0 ? is 1 ? etc.

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Who were most of the WHO workers attempting to hunt down and eradicate smallpox ? They were mostly young idealistic men. They were mostly older WHO workers, whose careers had lagged; they wanted to get back in the field. They were nearly all Africans and Indians , since those regions were most hard-hit by endemic smallpox. The majority were women.

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20. Find the smallest positive number \(x\) such that \(\sin^2 x - 4 \sin x + 2 = 0\).

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The Fourier Series of $f(x) = \begin{cases} 0, & -\pi < x < 0 \ \pi - x, & 0 \le x < \pi \end{cases}$ over $(-\pi, \pi)$ is converges at $x = \frac{\pi}{4}$ to.....

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Question 9 Let T have probability density function $f_T(t) = \frac{nt^{n-1}}{\theta^n}$ for $0 < t < \theta$ where $\theta > 0$ and $n$ is a known integer. Compute the mean of $T$. $E(T) = \frac{n}{n+1}\theta$ $E(T) = \frac{n+1}{n}\theta^2$ $E(T) = \frac{n+1}{n}\theta$

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Given the system of equations: { 2x - 3y - 9z = 30 x + 3z = -3 -3x + y - 4z = -3 (a) Determine the type of system: \(\circ\) dependent \(\circ\) inconsistent (b) If your answer is dependent in (a), find the complete solution. Write x, y as functions of t, where z = t. If your answer is inconsistent, write DNE for all three variables. x = y = z =

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5. Mobility of Membrane lipids. What is Lateral Diffusion? How important is it for the membrane to function?Which of the following functions of the membrane are contributed by lateral diffusion of lipids?What causes the flip-flop limitation? Which of the membrane properties is responsible for limiting flip-flop?

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Q1: Implement a class called Employee. a) A class named Employee b) Two private data members: name (string) and salary (int). c) Accessors and Mutators function for name, salary. d) implement a non-member function names output that will print all information of Employee object. Use following main() to test your class. int main(){ Employee a; a.setName("David"); a.setSalary(40000); cout<<"Name: "<<a.getName()<<endl; cout<<"Salary: "<<a.getSalary()<<endl; a.setName("Jack"); a.setSalary(50000); output(a); } Output from given main: (user input in bold font) Name: David Salary: 40000 Name: Jack Salary: 50000

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