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Company A has a return on investment of 20% and Company B has a return on investment of 24%. Assuming both companies have the same investment center average assets, which of the following statements is true? Multiple choice question. Company A has higher investment center income than Company B. Company A is more efficient in using its assets to generate profits. Company B has higher return on investment than Company A. Company B is more efficient in using its assets to generate profits.

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Three flat layers of transparent material are stacked upon one another. The top layer has index of refraction $n_1$, the middle $n_2$ and the bottom one $n_3$. If $n_1 > n_2 > n_3$, and a ray of light in air strikes the top layer, at which surface given can total internal reflection occur first? Total internal reflection cannot occur at any of these surfaces. the surface between materials with indices $n_2$ and $n_3$ the top surface the surface between materials with indices $n_1$ and $n_2$

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Q.3) A rigid bar AEC is supported by two steel rods (E = 29,000 ksi) AB and CD and supports a titanium (E = 16,500 ksi) rod EF with a load P =4.5 kips as shown below. The diameter the rods are: dAB = 1.5", dDC = 1", and dEF = 2". Calculate the vertical displacement of point F. B 3' D 3' E A C 1.25' 2' 2.25' F P

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A random change in allele frequencies over time is known as: O genetic drift. O gene flow. O admixture. O gene migration.

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Which of the following is not a best practice in ensuring mobile device security? Group of answer choices Rolling out configuration and software updates when users synchronize devices locally Conducting backup and recovery for mobile data Enforcing the use of virtual private network (VPN) connections among devices and servers None of the options

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Writing something to someone else to lower someone's reputation, if it is false, is libel. Group of answer choices True False

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Epithelial cells are responsible for maintaining barrier integrity to pathogens. Using your knowledge from the lectures, list 4 properties of epithelial cells that contribute to maintaining barrier integrity.

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using the following equation , explain how ions of different masses are separated using a magnetic sector mass analyser M/Z = B^2 r^2 /2V

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Classify each chemical reaction: Reaction MgCO$_3$(s) $\rightarrow$ MgO(s) + CO$_2$(g) K$_2$SO$_4$(aq) + Ba(NO$_3$)$_2$(aq) $\rightarrow$ 2KNO$_3$(aq) + BaSO$_4$(s) Mg(s) + FeCl$_2$(aq) $\rightarrow$ MgCl$_2$(aq) + Fe(s) Mg(s) + Br$_2$(l) $\rightarrow$ MgBr$_2$(s) Type choose one combination decomposition single displacement double displacement none of the above choose one X 5

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In a titration experiment in which a standard solution of hydrochloric acid is being added to a sodium hydroxide solution to determine the concentration of the sodium hydroxide solution, the end point is when All of the standard hydrochloric acid solution is used up The liquid in the burette is reduced to half of the original volume All of the sodium hydroxide has reacted All of the liquid is the burette is used up

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randy l.