Numerade

Questions asked

BEST MATCH

Find the area of the triangle having the given measurements. Round to the nearest square unit. A = 42\deg , b = 15 meters, c = 5 meters

View Answer

BEST MATCH

A company has the choice of eother selling 1000 unfunished units as is or completed them. The company could sells the unfinshed units as is for 4000. Altermatively it could compleye the unites for an additonal cost of $4500 & then sell the completed units for $8000. If the company completes the units, what is the impact on income

View Answer

BEST MATCH

Suppose a reaction involves two reactants (X and Y) and the rate law is found to be rate = 0.161 M-4 min-1 [X]4 [Y]1 What is the rate of the reaction when [X] = 0.194 M and [Y] = 0.211 M?

View Answer

BEST MATCH

2. A 6 kg mass and a 14 kg mass are suspended by a pulley with a radius of 18 cm and a mass of 4.5 kg. The cord has a negligible weight and causes the pulley to rotate without slipping. The pulley rotates without friction. The masses start from rest when they are 2.5 m apart. Treat the pulley as a uniform disk. Find: a. The speeds of the two masses when they meet at the same height. b. The angular velocity of the pulley at that time; c. The acceleration of the two masses. d. The Tension of the strings. e. The angular acceleration of the pulley. Solve this problem using Energy method.

View Answer

BEST MATCH

Marginal product of the first worker is 100, 120 for the second, 80 for the third, 30 for the fourth, 5 for the fifth, 3 for the sixth, 2 for the seventh, 150 for the eighth, and 0 for the ninth. What is total product for the fifth worker and the ninth worker respectively?

View Answer

BEST MATCH

Please answer all questions in R language in RStudio. The questions are as follows: #======= Question 1 (1 Point) ======= Q1-1. Spread the data out to multiple columns, with the shop type (Starbucks vs. Dunkin Donuts) being the key column and the number of shops being the value column. Q1-2. Delete observations that contain at least one missing value or invalid value (e.g., negative income). # Q2-1. Create a scatter plot to examine the relationship between house prices and Starbucks. # Q2-2. Repeat Q2-1 for Dunkin Donuts. # Q3. Build a linear regression model to predict house prices based on the number of Starbucks and Dunkin Donuts. # Consider both predictors at the same time. # One might argue that neighborhoods where Starbucks are located are relatively rich. # We want to examine if Starbucks still has a predictive power for house prices, even after controlling for household incomes and population. # Q4-1. Create new variables by taking the logarithm of median_income and population. # Q4-2. Build a linear regression model to predict house prices based on the number of Starbucks and Dunkin Donuts, as well as the logarithm of household incomes and population. # Q4-3. Do you think considering median income and population improves the linear regression model? #======= Question 5 (2 Point) ======= # The dynamics of house prices might vary across counties. # Q5-1. Split (facet) the plot resulting from Question 2 by county. # Q5-2. Add the county variable to the previous linear regression model (from Question 4). #======= Question 6 (2 Point) ======= # Note that answers without any explanations will be given a penalty. # There is no particular answer to this question. Any "reasonable" answers based on your analyses are acceptable. # Q6-1. Do you think the coefficients of Starbucks and Dunkin Donuts remain significant after considering the county information? # Write your opinion briefly by commenting (#). # Q6-2. According to the linear regression model in Question 5, which county has the highest average house prices? # Write your opinion briefly by commenting (#). # Q6-3. Calculate average house prices by county. Which county has the highest average house prices? # If the result seems different from the linear regression, how would you interpret it?

View Answer

BEST MATCH

Q6. Find the volume of the region that is between the $xy$-plane and $f(x,y) = y + e^{x^2}$ and above the triangle with the vertices $(0,0)$, $(2,0)$ and $(2,2)$.

View Answer

BEST MATCH

Submit Submissions Inbox Part 1 Status Start Date Due Date Inactive 2020 Apr 22 12:12 2020 May 02 12:12 Post Date 2020 May 03 12:12 Grade Total Tools 100 i Question: Describe various policy measures taken by governments and Central Banks to deal with Corona Pandemic. How effective have been these policy measures, especially monetary and fiscal policies, in reducing the severity of the crisis? Take one or more countries as examples for your study. Provide data and analysis to support your answer. Direction: Please answer the question in detail. Support your answer with data and references as much as possible. Do not copy and paste. Write in your own words and provide references wherever applicable. Use economic terminologies as much as possible. Write legibly in complete sentences using correct English language. There is no page limit.

View Answer

BEST MATCH

Balance the nuclear reactions (find X)? a) $^{212}_{84}Po \rightarrow ^{208}_{82}Pb + X$ b) $^{137}_{55}Cs \rightarrow ^{137}_{56}Ba + X

View Answer

BEST MATCH

(1 point) Let $ \vec{x} = \begin{bmatrix} -2 \ -5 \ -1 \end{bmatrix} $ and $ \vec{y} = \begin{bmatrix} 0 \ 4 \ 6 \end{bmatrix} $. Find the vectors $ \vec{v} = 2\vec{x} $, $ \vec{u} = \vec{x} + \vec{y} $, and $ \vec{w} = 2\vec{x} + \vec{y} $.

View Answer

brian h.