Numerade

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SAD refers to: Seasonally altered depression Sun affected disorder Seasonal Affective Disorder None of the Above

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Problem 5 A company wants to purchase a security system. It was offered with three payment options from the supplier: (1) pay $250,000 now; (2) pay $620,000 6 years from now; or (3) pay $150,000 now and $150,000 two years from now. Assume the rate of return is 10% per year and the inflation rate is 5% per year. Use PW analysis to determine which option the company should accept with inflation considered.

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Factor the trinomial completely. If the polynomial is prime, so state. x^(2)+8x+15

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There are three bad habits that can keep you from maintaining peak performance:a) Perseverance, perfectionism, lacking a game planb) Procrastination, perseverance, having a game planc) Procrastination, perfectionism, having a game pland) Procrastination, perfectionism, lacking a game plan

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Consider the matrix \"renovation\" $U$ that will transform our house in figure 1 into the house in Figure 2 below. Figure 1. The usual house, without the marked points Figure 2. The transformed house $\begin{pmatrix} 1 & 0 \\ 0 & 1 \end{pmatrix}$ Playing with the app above (or otherwise), we see that the matrix representation for this linear transformation would be $K = \begin{pmatrix} \boxed{ }\\ \boxed{ } \end{pmatrix}$, This transformation would send $v = \begin{pmatrix} 1 \\ 5 \end{pmatrix}$ to $U(v) = \begin{pmatrix} \boxed{ }\\ \boxed{ } \end{pmatrix}$

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How can you get accurate data for an antibiotic when the disc is put to close to the edge of the plate? Group of answer choices measure the circumference and divide by 2 measure the radius and multiply it by 2 redo the the procedure and make sure that there is enough distance from the edge measure the diameter and multiply it by 2

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2. We roll a six-sided die until we get a 6. Let Y be the number of rolls made and X the number of 1s rolled before rolling a 6. (a) Find the joint distribution of the vector (X, Y). Are X and Y independent? Justify your answer. (b) Find E(X\mid Y) and EX.

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Solve the equation. (2)/(x^(2)+5x+6)-(2)/(x+2)=(7)/(x+3) Solve the equation. 2 2 x+5x+6 x+2 x+3

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Question 7, Part 1 of 4 Prove the identity. $\csc^2\alpha \sec^2\alpha = \sec^2\alpha + \csc^2\alpha$ To verify the identity, start with the left side and transform it to obtain the right side. Choose the correct step and transform the expression according to the step chosen. (Use parentheses to clearly denote the argument of each function.) $\csc^2\alpha \sec^2\alpha =$ Apply double-angle identities. Apply a Pythagorean identity. Apply basic identities.

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Task 18: There has been 550°C inside a room for a while. The room is separated from the environment with a concrete wall 20 cm thick, 3 m high and 5 m wide. The ambient temperature is 20°C and you have the following information: $\nu = 1.8 \cdot 10^{-5}$, $\beta = \frac{1}{T_{\infty}}$, $Pr = \frac{\nu}{\alpha}$, $Gr = \frac{g \beta \Delta T}{\nu^2}$ and $Nu = \frac{hl}{k}$ We have the following correlation given in Tabel 1: Tabell 1: Caption Natural Forced Laminar $Nu= 0.59 (Gr \cdot Pr)^{1/4}$ $0.66 \cdot Re^{1/2} \cdot Pr^{1/3}$ $10^4 < Gr \cdot Pr < 10^9$ $20 < Re < 3 \cdot 10^5$ Turbulent $Nu= 0.13 (Gr \cdot Pr)^{1/3}$ $0.037 \cdot Re^{4/5} \cdot Pr^{1/3}$ $Gr \cdot Pr > 10^9$ $Re > 3 \cdot 10^5$ a) Calculate the convective heat transfer coefficient. Assume it is the same on both sides. b) Calculate the heat transfer through the wall.

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barbara c.