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A security analyst is performing a security assessment. The analyst should not: Group of answer choices take actions to mitigate a serious risk. get written authorization from the organization to verify that the assessment should take place securely erase all collected information that’s not needed for business purposes protect all working notes

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Let f(x, y, z) = sin(xy + z), P = (0, −1, π) and Q = (1, −1, 1). a) Calculate the directional derivative of f at P in the direction of the vector making an angle 2π 3 with ∇f(P). b) What is the unit normal vector of this surface at Q?

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2. Problem 5.41, Page 276. Please answer the following extra questions too: (b) For the $T$ that you chose, what is the sampling rate $F_s$ in Hz? (c) If $\omega_0 = 1000\pi$, please find the expressions for $x[n]$ and $y[n]$. 5.41. As shown in Figure P5.41, a sampled version $x[n]$ of an analog signal $x(t)$ is applied to a linear time-invariant discrete-time system with frequency response function $H(\Omega)$. Choose the sampling interval $T$ and determine the frequency response function $H(\Omega)$ so that $y[n] = \begin{cases} x[n], & \text{when } x(t) = A \cos \omega_0 t, \quad 100 < \omega_0 < 1000 \\ 0, & \text{when } x(t) = A \cos \omega_0 t, \quad 0 \le \omega_0 \le 100 \end{cases}$ Express $H(\Omega)$ in analytical form.

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$ -3.4(12-14.2)=(-3.4)(12)+(-3.4)(-14.2) $ and since $ (12-14.2)=-2.2 $, the expression can also be written as $ -3.4(12-14.2)=(-3.4)(-2.2) $ What is the value of $ -3.4(12-14.2) $ ? A -7.48 B $ \quad 74.8 $ C 7.48 D -74.8

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√(-60)/√(-3)

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CH2CH3 CH3 H H H. H H H H H3C H H CH2CH3 CH3CH2 CH3 CH3 CH3 CH3 60- 2 600 2 3 1

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A two-sample z-test for two population proportions is to be performed. The null hypothesis is H0: p1 – p2 = 0 and the alternative is HA: p1 – p2 ≠ 0. Use the given sample data to find the P-value for the hypothesis test. Give an interpretation of the p-value. A poll reported that 41 of 100 men surveyed were in favor of increased security at airports, while 35 of 140 women were in favor of increased security. A) P-value = 0.4211; If there is no difference in the proportions, there is a 42.11% chance of seeing the exact observed difference by natural sampling variation. B) P-value = 0.0086; There is about a 0.86% chance that the two proportions are equal. C) P-value = 0.0512; There is about a 5.12% chance that the two proportions are equal. D) P-value = 0.0512; If there is no difference in the proportions, there is about a 5.12% chance of seeing the observed difference or larger by natural sampling variation. E) P-value = 0.0086; If there is no difference in the proportions, there is about a 0.86% chance of seeing the observed difference or larger by natural sampling variation.

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on 2 Seved Help Save & Exit Subm Karl's Sausage Universe is thinking of adding a new speciality sausage making machine. The new machine will cost $275,000 to purchase and Install. The Installed cost will be depreciated straight-line over Its 6-year tax life and will be sold for $30,000 after the five years that Karl's plans to use it. The machine will be housed in a small building that the company paid $100,000 for but has been trying sell for $90,000. The new machine will enable the company to sell 50,000 sausages at a price of $2.75. Variables costs are $1.15 per sausage and fixed costs are $35,000. Adding the new machine will require an additional $7,000 in net working capital, which will be recovered at the end of the five-year project. The tax rate is 21% and the discount rate is 11%. What is the deprectiation tax shield for the second year of the project? Multiple Choice $11,550 None of the above. $9,625 $6,300 $45,833 96 25 Plan

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Problem 9.33 Figure 100 ? 4 mH 80 nF 500 ? 5 of 11 Review | Constants For the circuit shown in (Figure 1), find the steady-state expression for $v_o$ if $i_g = 15 \cos \,50000t$ mA. Suppose that $v_o(t) = V_o \cos(\omega t + \phi)$, where $-180^\circ < \phi < 180^\circ$. Determine the values $V_o$, $\omega$, and $\phi$. Express your answers using three significant figures separated by commas. $V_o, \omega, \phi$ 4.74,50000, – 108.43 Submit Previous Answers Request Answer 1 of 1 Incorrect; Try Again; 5 attempts remaining Part B By how many microseconds does $v_o$ lead $i_g$? Express your answer using three significant figures. $\Delta t =$ ??

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6. Suppose we are designing a rotating shaft with a fully reversed bending moment of 100 N-m and a constant applied torque of 80 N-m. [Assume no axial or shear loads are applied to the shaft.] The shaft is to be machined from AISI 1050 Cold Drawn steel so that it has a machined surface finish. AISI 1050 cold drawn steel has an ultimate strength of 690 MPa and a yield strength of 580 MPa. The diameter of the shaft is 20 mm. The shaft operates at room temperature and the reliability factor is not specified. a. Calculate $K_a$, $K_b$, $K_c$, $K_d$, and $K_e$. Be clear what your answer is for each of the factors. b. Calculate the endurance limit for the material using the factors above. c. Calculate the Distortion Energy (Von Mises) mean stress and alternating stress. d. Will the shaft yield on the first cycle? e. Is the shaft designed for infinite life using the Goodman theory? If so, what is the safety factor for infinite life design? If the shaft is not designed for infinite life, calculate the number of cycles to failure [Answers: Endurance limit 229 MPa, Alternating stress 127.3 MPa, Mean 88.2 MPa n = 1.46]

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christopher r.