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elaine jenkins

elaine j.

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1. 35 pts The output characteristics for an NMOS transistor are given below. What are the values of $K_n$ and $V_{tn}$ for this transistor? Is this an enhancement mode or depletion-mode transistor? What is W/L for this device for $k_n' = 100 \frac{\mu A}{V^2}$? Drain current ($\mu A$) Drain-source voltage (V) 5 V 4 V 3 V 2 V $k_n \approx 129 \frac{\mu A}{V^2}$, $V_{tn} \approx 1.53V$, $W/L \approx 1.29$ Enhancement mode.

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Find the variance and the standard deviation (correct to two decimal places). 78, 86, 95, 95, 96 variance standard deviation

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1. $\begin{cases} z = 0 \\ \frac{1}{x} = 1 \\ 3x - 3 = 0 \end{cases}$ 2. $\begin{cases} x = 1 \\ 3z = 3 \\ \frac{1}{x} = -1 \end{cases}$ 3. $\begin{cases} x = 0 \\ z = 1 \\ z = -1 \end{cases}$ 4. $\begin{cases} x = 1 \\ x + z = 1 \\ x - z = -1 \end{cases}$ 5. $\begin{cases} x = 0 \\ y = 0 \\ z = 0 \end{cases}$ 6. $\begin{cases} x = 1 \\ x + z = 1 \\ x - z = 1 \end{cases}$ 7. $\begin{cases} -x + z = 1 \\ x + z = 1 \\ z = -1 \end{cases}$ 8. $\begin{cases} x = 0 \\ y = 0 \\ y + z = 0 \end{cases}$ 9. $\begin{cases} x - z = 0 \\ x + z = 0 \\ x = 0 \end{cases}$

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1. Find the area of the shaded region 2. Find the area of the shaded region by : (a) integrating with respect to \( x \) (b) integrating with respect to \( y \) EXERCISE 1 3. Find the area of the region a. \( y=3-\frac{1}{3} x^{2} \quad, \mathrm{y}=0 \) between \( x=0 \) and \( x=3 \) b. \( y=(x-4)(x+2), y=0 \), between \( x=0 \) and \( x=3 \) c \( x=8 y-y^{2}, x=0 \) d. \( 4 y^{2}-2 x=0,4 y^{2}+4 x-12=0 \) 4. Find the area of the regtangle with vertices at \( (-1,4),(2,-2) \) and \( (5,1) \) by integration

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2. A box contains 58 marbles, 14 yellow marbles, 28 blue marbles, all the marbles are of the same size. Three marbles are drawn at random from the box, first one, then a second, and then a third. (a) Determine the probability of getting one red marble, one yellow marble, and one blue marble with replacement. (b) Determine the probability of getting one red marble, one yellow marble, and one blue marble without replacement.

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2. The impact of a tariff Consider a hypothetical example of trade in aluminum between the United States and China. For simplicity, assume that China is the only source of U.S. aluminum imports. The following graph shows the U.S. market for aluminum. Note that in the absence of any trade, the market price for aluminum in the United States is $500 per tonne, and the equilibrium quantity is 250 million tonnes per month.

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If the FED stops buying back Treasury Securities, then we would expect the price of Treasury securities to increase. the quantity of Treasury securities traded to decrease. interest rates to remain unchanged. the quantity of Treasury securities traded to increase.

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On an exam with a mean of M= 39, you obtain a score of X = 35 Which of the following would you prefer as the standard deviation? (Hint: Sketch each distribution, and find the location of your score.) If your score were X = 43, which would you prefer as the standard deviation?

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Delish Foods sells jars of special spices used in Italian cooking. The variable cost is $1 per unit. Fixed costs are $9,000,000 per year. It has $42,000,000 of average assets, and the desired profit is a 4% return on assets. Delish Foods sells 5,000,000 units per year. The company uses cost-plus pricing because it is the only company that produces this kind of product. Using cost-plus pricing methodology, determine the sales price per unit. (Round your answer to the nearest cent) A. $2.80 B. $1.00 C. $1.25 D. $3.14

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QUESTION 8 Match the following pairs Velocity profiles in a pipe for laminar flow Mean velocity in a pipe for laminar flow is equal to There is no precise expression for velocity distribution in a pipe for Shear stress profile in a pipe for laminar flow linearly proportional to For pipe flow the shear stress is maximum A. at the pipe wall. B. turbulent flow C. maximum velocity divided by 2 D. is parabolic E. a pressure gradient

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