Numerade

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Given that $A$ is transformed into $U$ by the elementary row operations below, complete $E_1^{-1}$ and $E_2^{-1}$. $A = \begin{bmatrix} -8 & 8 & 4\\ 4 & 4 & -2\\ -11 & -2 & 2 \end{bmatrix}$ $2R_1 + R_3 \rightarrow R_3\\ \begin{bmatrix} -8 & 8 & 4\\ 4 & 4 & -2\\ 0 & 8 & -6 \end{bmatrix}$ $-2R_1 + R_2 \rightarrow R_2\\ \begin{bmatrix} -8 & 8 & 4\\ 0 & -8 & -10\\ 0 & 8 & -6 \end{bmatrix} = U$ $E_1^{-1} = \begin{bmatrix} 1 & \\ & 1 \\ & & 1 \end{bmatrix}$ $E_2^{-1} = \begin{bmatrix} 1 & \\ & 1 \\ & & 1 \end{bmatrix}$

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PCP-2 A singly ionized lithium atom has 3 protons in the nucleus with two electrons in the innermost orbit of radius R as shown to the right. a) Write a symbolic expression for the electric potential energy of each nucleus-electron interaction in terms of K, e and R. b) Write a symbolic expression for the electric potential energy of the electron-electron interaction in terms of K, e and R. c) Show your work to get a simplified symbolic expression for the total electric potential energy of this system of 3 charges (nucleus and two electrons) in terms of K, e and R. d) Find the numerical value in eV for the total electric potential energy of this system of 3 charges if R=1.76x10$^{-11}$m.

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A client with open angle glaucoma asks the nurse how long the prescribed eye drops will need to be used which response by the nurse is accurate? For long term control of pain and swelling until the excess pressure is reduced until a smaller angle can be restored for long term control of normal eye pressure

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23) NextDoor CORP, had the following in 2023: sales of $3,800,000, Cost of Goods Sold of $900,000, administrative expenses of $350,000 depreciation expense of $70,000, interest expense of $50,000. What is the net income for the firm in 2023 using the following tax schedule? Taxable Income $ 1-50,000 $ 50,001-100,000 $ 100,001-1,000,000 $1,000,001-2,000,000 $2,000,000 + Tax Rate 5% 10% 20% 35% 40%

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????? ??????? ?????????? 60.7 . A. $ -\frac{1}{7} $ B. $ \frac{14}{3} $ (c) $ \frac{15}{2} $ D. $ \frac{11}{2} $

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Hungary has a comparative advantage in the production of shoes and Slovakia has a comparative advantage in the production of olive oil. Hungary can gain from specialization and trade as long as it receives more than 4 crates of olive oil for each pair of shoes it exports to Slovakia. Similarly, Slovakia can gain from trade as long as it receives more than 10 pairs of shoes for each crate of olive oil it exports to Hungary.

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An exchange rate can be described as: Question 6 options: the price of one country's currency in terms of another country's currency. the dollar value of U.S. international trade. the price of foreign currency as established by the relative amount of tourism. the price of a foreign currency as determined by the World Bank. the dollar value of imports and exports undertaken in the world economy during a year.

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A firm's Credit Policy consists of 4 variables. Which addresses the financial strength of acceptable credit customers. Select one: a. Credit Standards b. Credit Period c. Collection Policy d. Discounts

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Fill in the blank with Suitable WORD/PHRASE A1 Vehicles transporting material in horizontal path are known ____ path equipment. A2 Static seal has ____ at the contact points. A3 Movement of tool ____ to the axis of the job is known as longitudinal feed. An accurate way to align the shafts of rotating machinery is by ____ alignment A4 method. A5 In ____ method of Lubrication where the lubricant are not recovered. A6 Type of rolling bearing which can support large radial & large thrust is ____ A7 Couplings reduce transmission of ____ load from one shaft to another.

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This information is provided so that you can answer questions 8 - 10. Suppose that SP (the stack pointer) initially contains a value of 0x0346. The following snippet of code is then executed: LDI r19, 27 PUSH r28 PUSH r30 ANDI r18, 0x00 ADD r19, r18 INC r19 ORI r28, 0x46 ANDI r30, 0x55 PUSH r7 ADD r1, r19 POP r1 Question 8 What will be the final value of SP (the stack pointer)? Provide your answer in hexadecimal. Question 9 Based on the assembly code, what can we safely conclude about the final value of r30? Note: assume that we interpret the value as an unsigned decimal number. r30 will hold a value of at least 85 None of the other options are correct r30 will have a value of exactly 85 r30 will hold a value of no more than 85 Question 10 What is the final value (in decimal) of r19?

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david m.