1. Explain the difference between inorganic and organic molecules.

2. Define:

   a.   salt
   b.   electrolyte
   c.   anion
   d.   cation
   e.   acid
   f.   base
   g.   pH
   h.   buffer

Veldre Company provides the following information about its defined benefit pension plan for the year 2014.

Prepare a pension worksheet inserting jan 1 2014, balances, show December 31 2014 balances and the journal entry recording pension expense.

Prepare a pension worksheet inserting January 1, 2014, balances, showing December 31, 2014.

One of the consequences of the economic meltdown in Great Recession has been a free fall of the stock market's average price/earning ratio, or P/E ratio. Generally, a high P/E ratio suggest that investors are expecting higher earnings growth in the future compared to companies with a lower P/E ratio. A Wall Street analyst wants to determine if the P/E ratio of rms in the footwear industry is dierent from the overall average of 20. The table below shows that P/E ratio for a sample of six rms in the footwear industry: Firm P/E ratio Collective Brands, Inc. 9.33 Cros,Inc. 22.63 DSW, Inc. 14.42 Nike, Inc. 18.68 Sketchers USA, Inc 9.35 Timberland Co. 14.93 a. (3 points) Let µ be the overall average P/E ratio. State the null and the alternative hypothesis in order to test whether the P/E ratio of rms in the footwear industry diers from the overall average of 20. b. (3 points) What is the average P/E ratio among the six footwear rms, i.e., x¯ =? c. (3 points) What is the standard deviation of the P/E ratio among the six footwear rms, i.e., s =? (Please around your answer to 4 decimal places. d. (3 points) Construct a 90% condence interval of the overall average P/E ratio, i.e., 90% condence interval of µ. (Please around your answer to 4 decimal places.) e. (2 point) Calculate the value of test statistic. (Please around your answer to 3 decimal places.) f. (4 points) Approximate the p-value in this test? g. (3 points) Does the P/E ratio of rms in the footwear industry dier from the overall average of 20? Please explain.

Please code the following prompt in python.

Today you will be building a movie/actor lookup. The data structure that will power your lookups will be a dictionary which maps movies (as strings) to a list of actors (you may also use a set if you prefer). You will also add features such as finding the most common actor in a data set, or the movies that two actors have been in.

The first function you should write is add_or_update_a_movie. This function takes the movie dictionary, a movie, and a list of actors. You will need this for all other functions, so complete this feature first. If a movie is added that doesn't exist in the dictionary yet, make a new entry. If it does exist, the list of actors should be added to the current list of actors, with no actors repeated.

All of the other functions in movies.py are explained in the documentation. The last function is for extra credit and will require some knowledge of recursive functions.

Incorporate a function that should have the signiture

def degrees_between(movie_dict, actor1, actor2):

and uses the following file to open and create a dictionary:

https://s3.amazonaws.com/mimirplatform.production/files/a5dac972-8c2d-4565-95be-4b036cb08e7b/movies_large.txt

In the context of software reliability and statistical testing: (a) Define operation profile and (b) Where or how can we obtain this information?

How to add and multiply two matrices in the following code?

#include "My_matrix.h"

#include <stdexcept>

My_matrix::My_matrix()

{

// add your code here

n = 0;

m = 0;

ptr = nullptr;

}

void My_matrix::allocate_memory()

{

// add your code here

ptr = new int* [n];

for (int i = 0; i < n; ++i) {

ptr[n] = new int[m];

}

}

My_matrix::My_matrix(int n1, int m1)

{

// add your code here

n = n1;

m = m1;

ptr = new int*[n];

for(int i = 0; i < n; i++) {

ptr[i] = new int[m];

}

for (int i = 0; i < n; i++) {

for (int j = 0; j < m; j++) {

ptr[i][j] = 0;

}

}

}

My_matrix::My_matrix(const My_matrix& mat)

{

// add your code here

this->n = mat.n;

this->m = mat.m;

ptr = new int*[n];

for(int i = 0; i < n; i++) {

ptr[i] = new int[m];

}

for (int i = 0; i < mat.n; i++) {

for (int j = 0; j < mat.m; j++) {

this->ptr[n][m] = mat.ptr[n][m];

}

}  

}

My_matrix::~My_matrix()

{

// add your code here

for (int i = 0; i < n; ++i) {

delete [] ptr[i];

}

delete [] ptr;

}

My_matrix& My_matrix::operator=(const My_matrix& mat)

{

// add your code here

   this->n = mat.n;

this->m = mat.m;

ptr = new int*[n];

for(int i = 0; i < n; i++) {

ptr[i] = new int[m];

}

for (int i = 0; i < mat.n; i++) {

for (int j = 0; j < mat.m; j++) {

this->ptr[n][m] = mat.ptr[n][m];

}

}

   }

int My_matrix::number_of_rows() const

{

// add your code here

return n;

}

int My_matrix::number_of_columns() const

{

// add your code here

return m;

}

int* My_matrix::operator()(int i) const

{

// add your code here

return ptr[i];

}

int My_matrix::operator()(int i, int j) const

{

// add your code here

   return ptr[n][m];

}

int& My_matrix::operator()(int i, int j)

{

// add your code here

return ptr[n][m];

}

int My_matrix::elem(int i, int j) const

{

if (i < 0 || i >= n) throw out_of_range("Out of range");

if (j < 0 || j >= m) throw out_of_range("Out of range");

// add your code here

return ptr[n][m];

}

int& My_matrix::elem(int i, int j)

{

// add your code here

if (i < 0 || i >= n) throw out_of_range("Out of range");

if (j < 0 || j >= m) throw out_of_range("Out of range");

return ptr[n][m];

}

ostream& operator<<(ostream& out, const My_matrix& mat)

{

// add your code here

for (int i = 0; i < mat.number_of_rows(); i++) {

for (int j = 0; j < mat.number_of_columns(); j++) {

out << mat(i, j) << " ";

}

out << endl;

}

return out;

}

istream& operator>>(istream& in, My_matrix& mat)

{

// add your code here

for(int i = 0; i < mat.number_of_rows(); i++ ){

for(int j = 0; j < mat.number_of_columns(); j++){

in >> mat(i, j);

}

}

return in;

}

My_matrix operator+(const My_matrix& mat1, const My_matrix& mat2)

{ // add your code here

}

My_matrix operator*(const My_matrix& mat1, const My_matrix& mat2)

{

// add your code here

}

Argentina Partners is concerned about the possible effects of inflation on its operations. Presently, the company sells 67,000 units for $40 per unit. The variable production costs are $21, and fixed costs amount to $770,000. Production engineers have advised management that they expect unit labor costs to rise by 20 percent and unit materials costs to rise by 15 percent in the coming year. Of the $21 variable costs, 60 percent are from labor and 20 percent are from materials. Variable overhead costs are expected to increase by 25 percent. Sales prices cannot increase more than 10 percent. It is also expected that fixed costs will rise by 6 percent as a result of increased taxes and other miscellaneous fixed charges. The company wishes to maintain the same level of profit in real dollar terms. It is expected that to accomplish this objective, profits must increase by 7 percent during the year. Required:

a. Compute the volume in units and the dollar sales level necessary to maintain the present profit level, assuming that the maximum price increase is implemented.(Do not round intermediate calculations. Round up your answer for "Volume in units" to the nearest whole number and round your answer for "Sales" to the nearest whole dollar amount.)

b. Compute the volume of sales and the dollar sales level necessary to provide the 7 percent increase in profits, assuming that the maximum price increase is implemented. (Do not round intermediate calculations. Round up your answer for "Volume in units" to the nearest whole number and round your answer for "Sales" to the nearest whole dollar amount.)

c. If the volume of sales were to remain at 67,000 units, what price increase would be required to attain the 7 percent increase in profits? Calculate the new price. (Round your answer to 2 decimal places.)

what is your take on positive psychology? Post your thoughts with reference.

A 10.0 cm tall pencil stands balanced on its eraser, 25.0 cm in front of a mirror with radius of curvature of 1.00 m. Where will the image form, and how tall will the image be, if a) the mirror is concave, and b) the mirror is convex?

ZD&D holds a patent on a unique medical device that is used for DNA mapping. Assume that ZD&D is a single-price profit-maximizing monopolist and is currently earning positive economic profits.

(a) Draw a correctly labeled graph and show each of the following

ZD&D’s profit-maximizing price and quantity, labeled as P* and Q*.

The area representing ZD&D’s economic profits.

The allocatively efficient level of output, labeled as Qs.

(b) Instead of maximizing profit, assume that now ZD&D maximizes its total revenue.
On your graph in part (a), identify the output level that ZD&D would chose, labeled as Qr.

(c) Assume that the government imposes a set price (a price control) on ZD&D so that the allocatively efficient level of output, Qs, is produced.
On your graph in part (a), show this set price, labeled as Ps.

A small block with mass 0.0450kg slides in a vertical circle of radius 0.575m on the inside of a circular track. During one of the revolutions of the block, when the block is at the bottom of its path, point A, the magnitude of the normal force exerted on the block by the track has magnitude 3.85N . In this same revolution, when the block reaches the top of its path, point B, the magnitude of the normal force exerted on the block has magnitude 0.685N .

How much work was done on the block by friction during the motion of the block from point A to point B?

Express your answer with the appropriate units.

find a real world example of market failure. Describe what, if anything, the government did to try to rectify this market failure. (In your own words, something that makes sense)

HW_7d -   Cat class

Create 3 files:

1. Cat.h
   • Include a class specification for a Cat class
   • Data members include:
     • A cat’s weight
     • A cat’s color

• Member functions (methods) include:
  • A function called setWeight, to set the cat’s weight
  • A function called setColor, to set the cat’s color
  • A function called displayInfo, that displays a cat’s age and weight on the screen
  • A function called meow, that lets the cat say “Meow” on the screen

1. Cat.cpp
   • Include the method implementations for the four functions in this file

1. Source.cpp
   • Include main()
     • In main(), declare three cats (3 cat objects)
     • Name them: Fluffy, Tom, and Kitty

• Ask the user to describe Fluffy (get Fluffy’s weight and color)

• Fluffy (the Fluffy object) calls setWeight to pass the weight to the method, where

    the weight is assigned to Fluffy’s weight.

• Fluffy (the Fluffy object) calls setColor to pass the color to the method, where

    the color is assigned to Fluffy’s color

• Repeat the above for the Tom and Kitty objects.

• Have each of the Cat objects call the DisplayInfo method to output the age and color

   of each cat.

• Have each cat say “MEOW” on the screen by having each Cat object call the

     meow method.

/* OUTPUT:

So you have three cats...

Describe Fluffy. What does she weight? 4

What color is she? brown

Describe Tom. What does he weight? 9

What color is he? orange

Describe Kitty. What does she weight? 5

What color is she? white

Fluffy weights 4 pounds and is brown.

Tom weighs 9 pounds and is orange.

Kitty weighs 5 pounds and is white.

Fluffy says: MEOW!

Tom says: MEOW!

Kitty says: MEOW!

Press any key to continue */

Code Language: C++

Please add comments for each code.

Northwood Company manufactures basketballs. The company has a ball that sells for $25. At present, the ball is manufactured in a small plant that relies heavily on direct labor workers. Thus, variable expenses are high, totaling $15.00 per ball, of which 60% is direct labor cost. Last year, the company sold 36,000 of these balls, with the following results: Sales (36,000 balls) $ 900,000 Variable expenses 540,000 Contribution margin 360,000 Fixed expenses 263,000 Net operating income $ 97,000 Required: 1. Compute (a) last year's CM ratio and the break-even point in balls, and (b) the degree of operating leverage at last year’s sales level. 2. Due to an increase in labor rates, the company estimates that next year's variable expenses will increase by $3.00 per ball. If this change takes place and the selling price per ball remains constant at $25.00, what will be next year's CM ratio and the break-even point in balls? 3. Refer to the data in (2) above. If the expected change in variable expenses takes place, how many balls will have to be sold next year to earn the same net operating income, $97,000, as last year? 4. Refer again to the data in (2) above. The president feels that the company must raise the selling price of its basketballs. If Northwood Company wants to maintain the same CM ratio as last year (as computed in requirement 1a), what selling price per ball must it charge next year to cover the increased labor costs? 5. Refer to the original data. The company is discussing the construction of a new, automated manufacturing plant. The new plant would slash variable expenses per ball by 40.00%, but it would cause fixed expenses per year to double. If the new plant is built, what would be the company’s new CM ratio and new break-even point in balls? 6. Refer to the data in (5) above. a. If the new plant is built, how many balls will have to be sold next year to earn the same net operating income, $97,000, as last year? b. Assume the new plant is built and that next year the company manufactures and sells 36,000 balls (the same number as sold last year). Prepare a contribution format income statement and compute the degree of operating leverage.