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brittney webb

brittney w.

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Identify the conic section represented by $12xy - 5y^2 = 36$ by finding a change of coordinate matrix P that will put the conic in standard position. In the field below write the equation of the rotated conic.

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In the ABO blood system, the O allele produces: the A antigen the O antigen the homozygous blood type no antigen the B antigen

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2. An engineering team is developing a new electronic device and wants to predict the battery life (hours) based on the device's screen brightness (percentage). The team has collected data from experiments on 8 different brightness settings. [6 marks] \begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|} \hline \begin{tabular}{c} Screen \\ Brightness (\%) \end{tabular} & \( 10+\mathrm{X} \) & \( 25-\mathrm{X} \) & \( 31+\mathrm{X} \) & 40 & \( 55+\mathrm{X} \) & \( 47+\mathrm{X} \) & \( 26+\mathrm{X} \) & 62 & 67 & \( 65-\mathrm{X} \) \\ \hline \begin{tabular}{c} Battery Life \\ (Hours) \end{tabular} & 20 & \( 15+\mathrm{X} \) & 16 & \( 12+\mathrm{X} \) & \( 10+\mathrm{X} \) & \( 15-\mathrm{X} \) & \( 13+\mathrm{X} \) & \( 10+\mathrm{X} \) & \( 14-\mathrm{X} \) & 6 \\ \hline \end{tabular} X = Last digit of your Student ID. a) Fit the linear regression model for the above data and interpret the regression coefficients. [2] b) Predict the battery life for \( 27 \% \) screen brightness. [0.25] c) Find the residual for \( 40 \% \) screen brightness. [0.5] d) How strongly and which direction Battery Life (hours) is related to Screen Brightness (\%)? Show both graphically and mathematically. Fit the regression line in the same graph. [3] e) Comment on the goodness of fit of the model. [0.25]

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how to caclculate total output of product and gain from trade

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How might you determine, experimentally, whether a new disease-causing organism is a virus or a bacterium?

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The magnetic flux through the loop shown in the accompanying figure varies with time according to $\Phi_m = \Phi_0e^{-\alpha t}sin(\omega t)$, where $\Phi_0 = 1 \times 10^{-3} \text{ T} \cdot \text{m}^2$, $\alpha = 3 \text{ s}^{-1}$, and $\omega = 120\pi \text{ rad/s}$. What are the direction and magnitude of the current through the 5-$\Omega$ resistor at (a) $t = 0$; (b) $t = 2.17 \times 10^{-2} \text{ s}$, and (c) $t = 3.00 \text{ s}$?

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On June 30, 2018, Georgia-Atlantic, Inc., leased warehouse equipment from Builders, Inc. The lease agreement calls for Georgia-Atlantic to make semiannual lease payments of $509,761 over a 5-year lease term, payable each June 30 and December 31, with the first payment at June 30, 2018. Georgia-Atlantic's incremental borrowing rate is 8.0%, the same rate Builders used to calculate lease payment amounts. Builders manufactured the equipment at a cost of $3.8 million. (FV of $1, PV of $1, FVA of $1, PVA of $1, FVAD of $1 and PVAD of $1) (Use appropriate factor(s) from the tables provided.) Required: 1. Determine the price at which Builders is \"selling\" the equipment (present value of the lease payments) at June 30, 2018. 2. What amounts related to the lease would Builders report in its balance sheet at December 31, 2018 (ignore taxes)? 3. What amounts related to the lease would Builders report in its income statement for the year ended December 31, 2018 (ignore taxes)? (For all requirements, enter your answers in whole dollars and not in millions. Round your final answer to nearest whole dollar.) 1. Present value 2. Amount to be reported in the balance sheet 3. Amount to be reported in the income statement

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# of Local Maxima on $f(x)$ 0 1 2 3 x = -5.5 x = -4.5 x = -6.5

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A coworker is asking for your help. He is considering investing in a project with the following future cash flows: Year 1: $57,000 Year 2: $72,000 Year 3: $78,000 If the initial outlay for the project is $185,000, and investor's required rate of return is 5%. Should your coworker invest the project, and why? A. No, because the project's IRR is lower than 5% B. Yes, because the project's profitability index is lower than 1. C. Yes, because the project's IRR is higher than 5%. D. No, because the project's NPV is negative.

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The volume of a square pyramid is 60 cubic inches and the height is 15 inches. Find the side length of the square base. Round your answer to the nearest hundredth.

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