Sheridan Company began using dollar-value LIFO for costing its inventory two years ago. The ending inventory for the past two years in end-of-year dollars was $292000 and $459000 and the year-end price indices were 1.0 and 1.1, respectively. Assuming the current inventory at end of year prices equals $647000 and the index for the current year is 1.15, what is the ending inventory using dollar-value LIFO? (Round intermediate calculations and final answer to 0 decimal places, e.g. 10,000.)

$600686.

$596936.

$563186.

$589886.

Please show work

A student sits on a rotating stool holding two 3.2-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg · m2 and is assumed to be constant. The student then pulls in the objects horizontally to 0.36 m from the rotation axis.

(a) Find the new angular speed of the student. rad/s

(b) Find the kinetic energy of the student before and after the objects are pulled in. before & after (J)

QQQ Corp. needs you to compute the cost of capital of an investment opportunity. QQQ has compiled the following information from public companies that in are same industry as the investment opportunity. Assuming that the project will be financed with only equity, what is the project’s cost of capital? Enter your answer as a percent, do not include the % sign. Round your final answer to two decimals.

*C PROGRAMMING LANGUAGE*

a) Given an array of size n, sort the array using pointers using malloc or calloc. Examples: Input: n = 5, A= {33,21,2,55,4} Output: {2,4,21,33,55}

b) Write a function that declares an array of 256 doubles and initializes each element in the array to have a value equal to half of the index of that element. That is, the value at index 0 should be 0.0, the value at index 1 should be 0.5, the value at index 2 should be 1.0, and so on. your function must be called in the main. Also, declaring array and the size must be using heap.

A rock climber stands on top of a 50 m -high cliff overhanging a pool of water. He throws two stones vertically downward 1.0 s apart and observes that they cause a single splash. The initial speed of the first stone was 2.2 m/s .

How long after the release of the first stone does the second stone hit the water?

What was the initial speed of the second stone?

What is the speed of the first stone as it hits the water?

What is the speed of the second stone as it hits the water?

Please explain how to solve the equations

Given the monthly returns that follow, find the R², alpha, and beta of the portfolio. Compute the average return differential with and without sign. Do not round intermediate calculations. Round your answers to two decimal places.

R²:   

Alpha:   %

Beta:   

Average return difference (with signs):   %

Average return difference (without signs)   %

Write Matlab programs implementing the algorithms based on bisection,Newton, and secant method for numerical solution of scalar nonlinear equa-tions. Use these programs to compute approximations to real roots of the

following equations:

exp(x)−3x^2=0, (1)

x^3=x^2+x+1, (2)

exp(x) =1/(0.1 +x^2), (3)

and

x= 1 + 0.3 cos(x). (4)

Use an error tolerance tol=10^(−12). Display the obtained approximations to the roots of these equations, and compare the number of iterations, starting with the same initial values x0 for bisection and Newton methods, and with x0 and x1, where x1 was computed by bisection starting with x0, for secant method.

Write the function letter_frequencies(text) that returns a dictionary containing all of the letter frequencies of all letters occurring in the parameter text.

For example:

if __name__ == '__main__':

    d = letter_frequencies('hello, world')
    print(d) # show the contents of this dictionary

will produce the following output:

    {'a': 0.0, 'b': 0.0, 'c': 0.0, 'd': 0.1, 'e': 0.1, 'f': 0.0, 'g': 0.0, 
    'h': 0.1, 'i': 0.0, 'j': 0.0, 'k': 0.0, 'l': 0.3, 'm': 0.0, 'n': 0.0, 
    'o': 0.2, 'p': 0.0, 'q': 0.0,'r': 0.1, 's': 0.0, 't': 0.0, 'u': 0.0, 
    'v': 0.0,'w': 0.1, 'x': 0.0, 'y': 0.0, 'z': 0.0}

1. The following table presents shear strengths (in kN/mm) and weld diameters (in mm) for a sample of spot welds.

1. Construct a scatterplot of strength (y) versus diameter (x). Verify that a linear model is appropriate.
2. Compute the correlation coefficient.
3. Compute the least-squares line for predicting strength from diameter.
4. Compute the fitted value and the residual for each point.
5. If the diameter is increased by 0.3 mm, by how much would you predict the strength to increase or decrease?
6. Predict the strength for a diameter of 5.5 mm.