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paula johnson

paula j.

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03-Following his stroke, Abdul is unable to regulate his hunger. Which area of the brain did the stroke most likely affect? amygdala hippocampus O hypothalamus O thalamus

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Which of the following event is associated to the first scientific approach to public health? A. Dr. Snow’s mapping strategy to address cholera outbreak in London in 1854 B. Smallpox C. Lemuel Shattuck report D. A and C only E. All of the above

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Individuals with agoraphobia might avoid which of the following locations? All of the options are correct a grocery store during peak hours a professional sports event Both a grocery store during peak hours and a professional sports event an open, isolated place

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Find the future value of $2752 invested for 5 years at 8% compounded quarterly. A. $4,089.33 B. $4,043.59 C. $4,073.63 D. $4,100.06

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5. (4 points) A student tries to determine the density of a solid object in lab. They fill a graduated cylinder to the 25.9 mL mark with water initially. The solid object is placed in the graduated cylinder and a new water level is reached, 32.9 mL. The mass of the object comes out to be 1.62 oz. What is the density in g/mL? (1 oz = 28.3 g)

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Derivative of Function (c): $f(x) = \frac{22x}{(x^2 - 11)^2}$ Antiderivative of Function (c): $f(x) = \frac{11}{x^2 - 11} + C$ 1. Access the Desmos help article and review the section about definite integrals and integrals with infinite limits, and examples from Integrals in Action. 2. In Desmos, using the graph of the first derivative function you created in Discussion 6, compute three definite integrals with the lower limit (a) and the upper limit (b), and interpret the integrals in the context of your application problem, if: $\circ \quad a = 0 \text{ and } b > 0$ $\circ \quad a > 0 \text{ and } b > 0 \text{ and } b > a$ $\circ \quad a = 0 \text{ and } b \text{ is } +\infty$

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VoIP uses TCP/IP and packet switching to send voice over an IP network. True False

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No errors found.

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Question 5 [10 points] Express the following invertible matrix A as a product of elementary matrices: You can resize a matrix (when appropriate) by clicking and dragging the bottom-right corner of the matrix. $\begin{bmatrix} 2 & 6 & 3 \\ 0 & 2 & 1 \\ 0 & 5 & 2 \end{bmatrix}$ Number of Matrices: 6 $A = \begin{bmatrix} 2 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix} \begin{bmatrix} 1 & 0 & 0 \\ 0 & -2 & 0 \\ 0 & 0 & 1 \end{bmatrix} \begin{bmatrix} 1 & 3 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix} \begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 5 & 1 \end{bmatrix} \begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & -\frac{1}{2} \end{bmatrix} \begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & -\frac{1}{2} \\ 0 & 0 & 1 \end{bmatrix}$ One possible correct answer is: $A = \begin{bmatrix} 1 & 3 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix} \begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 1 & 0 \end{bmatrix} \begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 2 \\ 0 & 0 & 1 \end{bmatrix} \begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 2 & 1 \end{bmatrix} \begin{bmatrix} 2 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix}$

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The voltage across the terminals of a 400 nF capacitor is \begin{equation*} v = \begin{cases} 25V, & t \leq 0\\ A_1te^{-1500t} + A_2e^{-1500t}V, & t \geq 0 \end{cases} \end{equation*} The initial current in the capacitor is 90 mA. Assume the passive sign convention. a) What is the initial energy stored in the capacitor? b) Evaluate the coefficients $A_1$ and $A_2$. c) What is the expression for the capacitor current?

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