Ace - AI Tutor
Ask Our Educators
Textbooks
My Library
Flashcards
Scribe - AI Notes
Notes & Exams
Download App
lorena webb

lorena w.

Divider

Questions asked

BEST MATCH

If a hotel's net income for October is $76,288 and its net sales for October is $450,250, what is the profit margin? Group of answer choices 14% 5.9% 17% 15%

View Answer
divider
BEST MATCH

A polychaete worm serves as the pathogen for disease in what economically important species? (choose the best answer) Group of answer choices Red abalone Coral reefs Black abalone Sea urchins

View Answer
divider
BEST MATCH

Which items do credit card and lending companies use to determine whether to lend you money or not? Your credit score Your credit discount Your credit bulletin Your credit dispatch

View Answer
divider
BEST MATCH

What is the causative agent of aids? Is it a bacterium, a virus, a prion, or a eukaryote?

View Answer
divider
BEST MATCH

Which of the following refers to an agreement between the debtor and the creditors wherein creditors put pressure on debtors to pay debts that have been discharged in bankruptcy? Multiple Choice A reaffirmation agreement A remuneration agreement An illusory contract An unconscionable contract

View Answer
divider
BEST MATCH

How does your value of µs compare to your value of µk? Does this make sense? Calculate the percent decrease between static and kinetic friction coefficients using the following equation. % decrease= μS- μK μS×100% What is the percent difference between your values of µs measured on incline plane and horizontal plane? What sources of error contribute to this difference in the two measured values? How does the friction coefficient depend on the mass of the block? Explain. For the horizontal plane, if the direction of pulling force applied to the block is not parallel to the plane, how will it affect the experiment? Explain. Give examples of materials with similar values of friction coefficients to those you have found in experiment/simulation.

View Answer
divider
BEST MATCH

A photoautotroph gains carbon and energy from: a. Carbon dioxide and light b. Carbon dioxide and glucose c. Carbon dioxide and inorganic sources d. Glucose and inorganic sources

View Answer
divider
BEST MATCH

An import quota is than a tariff for Canada as a whole because the deadweight loss for the importing country with an import quota is , whereas with a tariff the deadweight loss is .

View Answer
divider
BEST MATCH

Given the following matrices and vectors: \[ \begin{array}{l} X^{\prime} X=\left(\begin{array}{cccc} 9 & 136 & 269 & 260 \\ 136 & 2114 & 4176 & 3583 \\ 269 & 4176 & 8257 & 7104 \\ 260 & 3583 & 7104 & 12276 \end{array}\right), X^{\prime} Y=\left(\begin{array}{c} 45 \\ 648 \\ 1283 \\ 1821 \end{array}\right), \hat{\beta}=\left(X^{\prime} X\right)^{-1}\left(X^{\prime} Y\right)=\left(\begin{array}{c} -1.163461 \\ 0.135270 \\ 0.019950 \\ 0.121954 \end{array}\right), \\ Y^{\prime} Y=285 \\ \left(X^{\prime} X\right)^{-1}=\left(\begin{array}{cccc} 9.610932 & 0.0085878 & -0.2791475 & -0.0445217 \\ 0.0085878 & 0.5099641 & -0.2588636 & 0.0007765 \\ -0.2791475 & -0.2588636 & 0.1395000 & 0.0007396 \\ -0.0445217 & 0.0007765 & 0.0007396 & 0.0003698 \end{array}\right) \end{array} \] a) Use the vector \( \boldsymbol{b} \) to obtain the regression model \( P=a+b_{1} X_{1}+b_{2} X_{2}+b_{3} X_{3} \) b) Use the preceding results to complete the ANOVA table. c) Use the ANOVA table at the \( 5 \% \) level of significance to test the hypothesis that all regression coefficients are equal to zero. d) Obtain the standard error of each regression coefficient. e) Use the standard errors. at the \( 5 \% \) level of significance, to test the hypothesis that each regression coefficients are equal to zero.

View Answer
divider
BEST MATCH

16. You have $6,500 of equity in your account, and you just shorted two E-mini Dow Jones Index futures which have Initial Margin of $2,250 each, and maintenance margin of $2,000 each. Each Dow point is a minimum tic worth $5. How much is your profit if the Dow rises 165 points? 17. The exchange acts as the counterparty for both buyer and seller so every futures trade generates two transactions, a long position for the buyer and a short position for the seller. a. True b. False

View Answer
divider