Numerade

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Discussion Topic Follow For your first post, choose at least one of the following questions to complete. BE SURE TO SHOW YOUR WORK! 1. Find AB if it is defined for $A = \begin{bmatrix} 1 & 0 & 4 \\ 2 & 1 & 1 \\ 3 & 1 & 0 \\ 0 & 2 & 2 \end{bmatrix}$ and $B = \begin{bmatrix} 2 & 4 \\ 1 & 1 \\ 3 & 0 \end{bmatrix}$. 2. Does $AB = BA$ for $A = \begin{bmatrix} 1 & 1 \\ 2 & 1 \end{bmatrix}$ and $B = \begin{bmatrix} 2 & 1 \\ 1 & 1 \end{bmatrix}$. 3. Find the join and meet of the zero-one matrices for $A = \begin{bmatrix} 1 & 0 & 1 \\ 0 & 1 & 0 \end{bmatrix}$ and $B = \begin{bmatrix} 0 & 1 & 0 \\ 1 & 1 & 0 \end{bmatrix}$. 4. Find the Boolean product of A and B for $A = \begin{bmatrix} 1 & 0 \\ 0 & 1 \\ 1 & 0 \end{bmatrix}$ and $B = \begin{bmatrix} 1 & 1 & 0 \\ 0 & 1 & 1 \end{bmatrix}$. For your second post, describe an algorithm for determining whether a string of n characters is a palindrome. (Definition: A palindrome is a string that reads the same forward and backward, like "Hannah" or "Never Odd or Even")

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9. (10 Points) The cantilevered shaft in the figure is made from a ductile material and is statically loaded as shown. a. Find the torque on the shaft. b. Find the bending moments on the shaft around the y and z axes at A. c. Calculate the axial, bending and torsional shear stresses on the shaft. Neglect the VQ/It shear stress. d. Sketch the critical stress element and show the stresses acting on it. e. Find the principal and maximum shear stresses for the critical stress element. [Answers: Torque = 800 lb-in, My = -1600 lb-in, Mz = 960 lb-in, axial stress = 0.255 ksi, bending = 19.006 ksi, torsion = 4.074 ksi, principals 20.18, 0, -0.82 ksi, max shear 10.50 ksi] 1-in dia. 1/4 in 1 1/2 in 2 in 160 lb 100 lb 200 lb 6 in 5 in

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Direct purchase of Treasury bills is an investment similar to certificates of deposit.

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8C.6(a) What is the magnitude of the angular momentum of a $CH_4$ molecule when it is rotating with its minimum energy?

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Consider two local banks. Bank A has 8989 loans outstanding, each for $1.0 million, that it expects will be repaid today. Each loan has a 6 %6% probability of default, in which case the bank is not repaid anything. The chance of default is independent across all the loans. Bank B has only one loan of $ 89$89 million outstanding, which it also expects will be repaid today. It also has a 6 %6% probability of not being repaid. Calculate the following: a. The expected overall payoff of each bank. b. The standard deviation of the overall payoff of each bank. Question content area bottom Part 1 a. The expected overall payoff of each bank. The expected overall payoff of Bank A is $enter your response here million. (Round to the nearest integer.)

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Which of the following is often found in toothpaste as an antiseptic?

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When capabilities and demands match, we have a ____ focus on adjustment. Group of answer choices health pathology positive goodness of fit

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From the NYT article on Drug Prices, average drug prices in the US are double of which two countries? ? Belgium and France ? Germany and Britain ? Germany and France ? France and Britain

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Find the inverse Laplace transform of \begin{equation*} F(s) = \frac{1}{s} - \frac{s}{s^2 + 1} + e^{-\frac{\pi}{2}s} \left( \frac{3s - 1}{s^2 + 1} \right) \end{equation*} Note: Use $u$ for the step function. \begin{equation*} f(t) = (1 - \cos(t)) U(t) + (3 \cos(t) - \sin(t)) U \left( t - \frac{\pi}{2} \right) \end{equation*}

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Use dimensional analysis. 5. Penicillin comes in a 2-million-unit vial. Add 10 mL of sterile water and prepare to give 60,000 units. What do you administer?

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