Numerade

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1. Ch 12.1 PDEs solvable as ODES This happens if a PDE involves derivatives with respect to one variable only (or can be transformed to such a form), so that the other variable(s) can be treated as parameter(s). Solve for u= u (x,y): 1) $u_{yy} + 16u = 0$

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Mario was driving on the interstate when the car in front of her became involved in a bad accident involving the car rolling over and injecting a badly injured passenger for several days now she has briefly felt like she was back there seeing she has troubles sleeping and feels a bit alienated from her husband she is probably suffering from what mental disorder

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Which structure(s) contain(s) the highest percentage of total blood volume (60%) at rest? A. Left ventricle B. Pulmonary arteries C. Systemic veins D. Systemic arteries

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4. Let $A = \begin{bmatrix} a & 0 & 0 \\ b & -1 & 0 \\ -1 & a & -1 \end{bmatrix}$ and $B = \begin{bmatrix} 1 & 2 & 3 \\ 1 & -2 & 1 \\ 1 & -6 & -3 \end{bmatrix}$. Find the values of $a$ and $b$ such that \\ $AB = \begin{bmatrix} 2 & 4 & 6 \\ 0 & 4 & 2 \\ 0 & 0 & 2 \end{bmatrix}$, and hence solve the following system of equations:\\ $x_1 + 2x_2 + 3x_3 = 2$ \\ $x_1 - 2x_2 + x_3 = 8$ \\ $x_1 - 6x_2 - 3x_3 = 12$

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Complete the following activities involving modular arithmetic. Type your answers in the blanks. Separate multiple answers with a comma. (a) List all possible digits mod 5 starting with the lowest and going to the highest. Remember to separate digits with commas. The possible digits of mod 5 are ____________. (b) Convert 73 to a number mod 5. That is, find 73 mod 5. 73 mod 5 = ____________ mod 5. (c) Convert -99 to a number mod 5. That is, find -99 mod 5. -99 mod 5 = ___________ mod 5. (d) Add in the given modulus. Dont forget to reduce the answer. 2 mod 23 + 22 mod 23 = ___________ mod 23. (e) Multiply in the given modulus. Dont forget to reduce the answer. (15 mod 19)(7 mod 19) = __________ mod 19.

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. Now suppose Country B improves its technology to produce wheat, and now each worker can produce 4 tons of wheat per year. Are the gains from trade between Country A and Country B higher or lower than before? Why? _____________________________________________________ _____________________________________________________ _____________________________________________________

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Signs of shock include all the following EXCEPT: A Shortness of breath Restlessness Strong, rapid pulse Altered mental status Signs of shock include all the following EXCEPT: A Shortness of breath B Restlessness C Strong,rapid pulse D Altered mental status Next Question Previous Question

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What does #3 represent? 1 point a. Glomerulus b. Bowman's capsule c. Proximal tubule d. Distal tubule

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19. Automobile Repair Costs. Automobile repair costs continue to rise with an average 2015 cost of $367 per repair (U.S. News & World Report website). Assume that the cost for an automobile repair is normally distributed with a standard deviation of $88. Answer the following questions about the cost of automobile repairs. LO 5, 6 a. What is the probability that the cost will be more than $450? b. What is the probability that the cost will be less than $250? c. What is the probability that the cost will be between $250 and $450? d. If the cost for your car repair is in the lower 5% of automobile repair charges, what is your cost?

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Suppose that the coefficients of static and kinetic friction have values such as that μs = 1.4 and μk for a crate in contact with a cement floor. Which one of the following statements is true?

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mariano f.