1. An 8-inch diameter (I.D.) pipe is filled to a depth equal to one-third of its diameter. What is the area in flow?

2. Find the area of a washer formed by two concentric circles whose chord outside the small circle is 10 cm.

3. A goat is tied to a corner of a 30 ft by 35 ft building. If the rope is 40 ft. long and the goat can reach 1 ft. farther than the rope length, what is the maximum area of the goat can cover?

I need solution pleaseeee

Find WN, MRC, and MRP cells. Determine W* and N* from the information provided. Graph the labor supply and demand and MRC curve from the table's data. (Wages Y axis 10,20,30,40 ect, Labor X axis 1,2,3,4 ect.)

                        W N WN MRC MP MR MRP

                        50 1 ------ ------ 11 10    ------

                        50 2 ------ ------ 10 10 ------

                        50 3 ------ ------ 9 10 ------

                        50 4 ------ ------ 8 10 ------

                        50 5 ------ ------ 7 10 ------

                        55 6 ------ ------   6 10 ------

                        60 7 ------ ------ 5 10 ------

                        65 8 ------ ------ 4 10 ------

                        70 9 ------ ------ 3 10 ------

                        75 10 ------ ------ 2 10 ------

Write a program that reads and prints a joke and its punch line from two different files. The first file contains a joke, but not its punch line. The second file has the punch line as its last line, preceded by “garbage.” The main function of your program should open the two files then call two functions, passing each one the file it needs. The first function should read and display each line in the file it is passed (the joke file). The second function should display only the last line of the file it is passed (the punch line file). It should find this line by seeking to the end of the file and then backing up to the beginning of the last line. Data to test your program can be found in the joke.txt and punchline.txt files. the programming language is c++

Salsberry Realty sells homes along the East Coast of the United States. One of the questions most frequently asked by prospective buyers is: If we purchase this home, how much can we expect to pay to heat it during the winter? The research department at Salsberry has been asked to develop some guidelines regarding heating costs for single-family homes. Three variables are thought to relate to the heating costs: (1) the mean daily outside temperature, (2) the number of inches of insulation in the attic (roof), and (3) the age in years of the furnace. To investigate, Salsberry’s research department selected a random sample of 20 recently sold homes. It determined the cost to heat each home last January, as well as the January outside temperature in the region, the number of inches of insulation in the attic, and the age of the furnace.

FACTORS IN JANUARY HEATING COST FOR A SAMPLE OF 20 HOMES

1. Develop an estimated regression equation that relates heating cost to mean outside temperature.
2. Develop an estimated regression equation that relates heating cost to age of furnace.
3. solve it by using excel please

A proposed cost saving investment has a five year life and an installed cost of $800,000. The depreciation schedule for the equipment is three year MACRS for which the annual factors are .333, .4445, .1481, .0741. The equipment has an estimated salvage value in year 5 of $65,000 before taxes. The company's required return on cost saving investments is 12% and its tax rate of 35%. The company expects to borrow the funds neccesary to make the investment and pay the interest at the rate of 7%. The loan will be interest only for five years with the repayment of principal at the end of the life of the project. A net working capital investment of $50,000 will be required immediatley and 50% of that will be recovered at the end of the third year of the project life. The balance of the NWC will be recovered at the end of year five. Management believes that the annual cost savings will be either $100,000 or $400,000 dpending on wether the economy is weak (40%) or stron (60%) for the next five years. An expected cost of the project is that the manager of the project will hire an assistant who will cost $45,000 per year before taxes for the first three years of the project. In the last two years of the project, the assistant will not be needed for the project and may be laid off or promoted to another project, depending on the need in the company for their skill set. Calculate the net present value of this project, then state wether the company should invest?

Jacob Lee is a frequent traveler between Los Angeles and San Francisco. For the past month, he wrote down the flight times on three different airlines.

Goust Jet Red Cloudtran

51 50 54

51 54 55

54 52 60

51 49 44

47 58 42

60 54

64 40

80

A. Use the 0.05 significance level to check ifbvthere is a different in the mean fliht times among the three airlines

B. Is there different between goulf and Couldtran (use 0.05 significant level)

This is C++
there are intruction and descriptions. Please give me the answer because I understand the concept, but don't know how to put in the actual problem yet.
Instructions and Assumptions

Declare and implement the three functions described below. Your declarations should go in AnyList.h. Your definitions should go in Functions.cpp.
For all of these functions, assume the list contains at least three elements. No need to consider the empty list cases.

The Functions

1. Overload the insertion operator as a friend function of AnyList. It should print only the first and last element.
For example, if the list were [1, 3, 5, 7], it should print "1 7".

2. Overload the > operator as a non-member function. It should compare two AnyList objects. Given two lists, ListA and ListB, ListA > ListB if the largest element of ListA is greater than the largest element of ListB.
For example, if ListA = [1, 2, 5] and ListB = [3, 4, 3], then ListA > ListB because 5 > 4.

3. Write a function called findAndModify that is a member function of AnyList. It should take one parameter - an integer called key. It should return a boolean value, which will be true if the key was found and false otherwise. This function should not print any error messages.
The function should search the list for key. If it finds key, it should add one node to the beginning of the list whose data should be key + 10.
Examples:
Assume the list is [3, 5, 20, 8, 5, 20]
findAndModify(3) --> return true; resulting list is [13, 3, 5, 20, 8, 5, 20]
findAndModify(5) --> return true; resulting list is [15, 15, 3, 5, 20, 8, 5, 20]
findAndModify(100) --> return false; resulting list is [3, 5, 20, 8, 5, 20]

AnyList.h/////////
/////////////////////////////////////////////////////
// Put your name on this file.
// Put the declarations for the functions where indicated.
// Do NOT add any other functions to DoublyList.
// Do NOT change any other functions in this file.
// Turn in this file
////////////////////////////////////////////////////

#ifndef ANYLIST_H
#define ANYLIST_H

#include<iostream>
#include <string>        //Need to include for NULL           

class Node
{
public:
    Node() : data(0), next(nullptr) {}
    Node(int theData, Node* newNext)
        : data(theData), next(newNext) {}
    Node* getNext() const { return next; }
    int getData() const { return data; }
    void setData(int theData) { data = theData; }
    void setNext(Node* newNext) { next = newNext; }
    ~Node() {}
private:
    int data;
    Node* next;
};

///////////////////////////////
// Declare Functions Here, if needed  
//////////////////////////////

class AnyList{
public:

    ///////////////////////////////
    // Declare Functions Here, if needed   
    //////////////////////////////

    /////////////////////////////////
    // Do not modify anything below //
    ////////////////////////////////
    AnyList();
    AnyList(int* elems, int numElem);
    void destroyList();
    ~AnyList();

private:
    Node* first;
    int count;       
};

#endif
AnyList.cpp///////
/////////////////////////////////////////////
// DO NOT MODIFY THIS FILE //
/////////////////////////////////////////////

#include "AnyList.h"

//constructor
AnyList::AnyList(){
    first = nullptr;
    count = 0;
}

AnyList::AnyList(int* elems, int numElem) {
    first = new Node(elems[0], nullptr);
    Node* last = first;
    for (int i = 0; i < numElem; i++) {
        last->setNext(new Node(elems[i], nullptr));
        last = last->getNext();
    }
    count = numElem;
}

void AnyList::destroyList(){
    Node* temp = first;

    while (first != nullptr){
        first = first->getNext();
        delete temp;
        temp = first;
    }
    count = 0;
}

//destructor
AnyList::~AnyList()
{
    destroyList();
}
Functions.cpp/////////
#include "AnyList.h"

///////////////////////////////////////
// Put your name in this file
// Implement your functions in this file
// Submit this file
/////////////////////////////////////

////////////////////////////////////////
// Definition of Function 1 goes here
//////////////////////////////////////

////////////////////////////////////////
// Definition of Function 2 goes here
//////////////////////////////////////

////////////////////////////////////////
// Definition of Function 3 goes here
//////////////////////////////////////

Main,cpp///////
///////////////////////////////////////
// Use this file to test your code
// Don't submit this file
/////////////////////////////////////

#include "AnyList.h"

#include <iostream>
using namespace std;

int main() {

    int elems[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
    AnyList testList(elems, 8);

    return 0;
}

National Paper Company must purchase a new machine for producing cardboard boxes. The company must choose between two machines. The machines produce boxes of equal quality, so the company will choose the machine that produces (on average) the most boxes. It is known that there are substantial differences in the abilities of the company's machine operators. Therefore National Paper has decided to compare the machines using a paired difference experiment. Suppose that eight randomly selected machine operators produce boxes for one hour using machine 1 and for one hour using machine 2, with the following results:

Let's define μ1μ1 as the mean production amount per hour with machine 1 and μ2μ2 as the mean production amount per hour with machine 2.

a. National Paper Company wants to know whether the mean production amount per hour differ between Machine 1 and 2? Set up the null and alternative hypotheses.

H0: μ1μ1 - μ2μ2 (Click to select)<>=≠≤≥ 0

Ha: μ1μ1 - μ2μ2 (Click to select)=><≥≤≠ 0

b. What is the value of the test statistic? (4 decimals) t=

c. Determine the critical value rejection rule. Reject H0 if (Click to select)t > t alphat <- t alphat > t alpha/2 or t <-t alpha/2d

d. What is the conclusion? (Step 7 of the hypothesis test.)

With 95% confidence we (Click to select)cannotcan conclude that the mean production amount per hour differ between Machine 1 and 2.

e. What is the 99% confidence interval for μ1μ1 - μ2μ2?

______ ≤ μ1μ1 - μ2μ2 ≤ _______

11.      A financial model is only as good as

12.      How does cost-volume-profit analysis allows management to determine the relative profitability of a product?

13.      If a company has variable costs of $40 per unit, fixed costs of $3,000 per month and sells its product for $50, how many units must it sell to break-even?

14.      A company produces two products, A and B. A sells for $16 and has variable costs of $10. B sells for $12 and has variable costs of $8. Fixed Costs for the period are $35,000. Normally four units of A are sold for every two units of B units. How many units of B must be sold if the company expects profits of $50,000?

A CI engine operating on the air standard diesel cycle has cylinder condtioons at the start of compression of 65 degrees C and 130 kPa. light diesel fuel is used at an equivalence ratio of 0.8 with a combustion efficiency of 0.98. compression ratio = 18 Calculate:

1. temperature and pressure in each state of the cycle (0c)
2. pressure at each state of the cycle (kpa)
3. cutoff ratio
4. indicated thermal efficiency (%)
5. heat lost in exhaust (KJ/Kg)