Numerade

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BERT, RoBERTa, DistilBERT, XLNet 1. Compare the performance of the 4 above for extractive QA? 2. Compare the quality of the 4 above for extractive QA?

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Proponents of ________ prefer that the market forces of supply and demand work without significant government involvement. supply-side economics demand-side economics monetary economics Keynesian economics free-market economics

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Show that the form under the integral sign is exact in the plane and\\ (2,2)\nevaluate the integral $\int_{(-1,-1)} e^{-x^2-y^2} (x \, dx + y \, dy)$.\\ NOTE: Enter the exact answer.\\ $(F_1)_y = \qquad \qquad = (F_2)_x$\\ $\int_{(-1,-1)}^{(2,2)} e^{-x^2-y^2} (x \, dx + y \, dy) = $

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Question 15 (2 points) The Aid to Families with Dependent Children program was set up in 1935 to benefit young children in female-headed families by making it possible for their mothers to remain at home. 1) True

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A cutting tool under microprocessor control has several forces acting on it. One force is $\vec{F} = -\alpha xy^2 \hat{j}$, a force in the negative y-direction whose magnitude depends on the position of the tool. The constant is $\alpha = 2.30$ N/m³. Consider the displacement of the tool from the origin to the point $x = 2.25$ m, $y = 2.25$ m Calculate the work done on the tool by $\vec{F}$ if this displacement is along the straight line $y = x$ that connects these two points. Express your answer in joules. W = -16.96 J Part B Calculate the work done on the tool by $\vec{F}$ if the tool is first moved out along the x-axis to the point $x = 2.25$ m, $y = 0$ and then moved parallel to the y-axis to $x = 2.25$ m $y = 2.25$ m Express your answer in joules. W = -16.96 J

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Texts: List the values of a, b, and c for the quadratic equation z^2 + 4z = 3.

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8. Consider the function $f(x) = \frac{x^T M x}{x^T x}$ for $x \in \mathbb{R}^n$, $x \neq 0$ where $M$ is an $n \times n$ P.D. matrix. Prove that the global minima and maxima of this function are $\lambda$ and $\overline{\lambda}$ (the smallest and largest eigenvalues of $M$), respectively. Find the $x$'s corresponding to these extrema. 9. Compute the derivative $Df$ of the following functions. (a) $f(x, y) = 3x^2 + 4xy + y^3$, $x, y \in \mathbb{R}$ (b) $f(x, y) = \begin{bmatrix} x^2 + 2y \ x + y^2 \end{bmatrix}$, $x, y \in \mathbb{R}$ (c) $f(x) = (Ax + B)^T M (Ax + B)$, $M = M^T$, $A, M \in \mathbb{R}^{n \times n}$, $B \in \mathbb{R}^n$

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Question 1 10 pts Consider a system represented in state-space ($\frac{dx}{dt} = Ax + Bu$) below. Design a controller using Ackermann's formula to place the poles at -2, -3, -5 and -10. You will calculate a gain matrix. Enter the largest value from your matrix K (there will be four values) below. A = $\begin{bmatrix} -4 & -20 & -120 & 0 \\ 1 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \end{bmatrix}$ B = $\begin{bmatrix} 1 \\ 0 \\ 0 \\ 0 \end{bmatrix}$

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Calculating Cost of Equity Again Wandering Oaken's Trading Post's common stock has a beta of 1.51. If the risk free rate of return is expected to be 5.92% and the market risk premium is 8.76%, what is the cost of equity for Wandering Oaken's common stock? answers should be entered as percentages s0 10.04% should be entered as 10.04.

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Define/explain the following in your own words: 1) Liquidity: Liquidity refers to the ease with which an asset or investment can be converted into cash without causing a significant impact on its market value. It is a measure of how quickly and easily an asset can be bought or sold in the market. 2) Discounting and Compounding: Discounting is the process of determining the present value of future cash flows by applying a discount rate. It is used to calculate the current value of an investment or a stream of cash flows. Compounding, on the other hand, is the process of calculating the future value of an investment by adding the interest earned or reinvested over a specific period of time. 3) Inflation: Inflation refers to the sustained increase in the general price level of goods and services in an economy over a period of time. It erodes the purchasing power of money, as the same amount of money can buy fewer goods and services due to the increase in prices. 4) Depreciation: Depreciation is the decrease in the value of an asset over time due to wear and tear, obsolescence, or other factors. It is a measure of the reduction in the asset's value and is commonly used in accounting to allocate the cost of an asset over its useful life.

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sherri b.