Write a matlab code to do following steps;

i) Record your voice by sampling frequency 22 kHz

ii) Down sample the voice by 2 listen to your voice

iii) Down sample the voice by 3 listen to your voice

Please explain the code clearly. Thank you.

1) You are asked to design 4-bit Odd Number Count-Down BCD Counter making use of ONLY Falling Edge JK-flipflop(s) and logic gates.

2) Based on the requirements,write down: (i) state diagram (ii) excitation table (iii) input equations

Your Company has five distribution centers located throughout the world. Management has decided to shut down two. Write a one-page memo to all employees stating the company’s plan to shut down two distribution centers. The decision has not been made as to which two will close.

· Question 10

· Question 11

· Question 12

Consider a perfectly competitive firm with total costs

?? = ? + ?? + ??2

a) Identify the fixed cost ??, and the variable cost of this firm, ??(?). (Each of them is just a part of the total cost.)

b) Find the average cost ??(?), and the marginal cost ??(?).

c) Long-run supply. Find the minimum of the ??(?) curve, which constitutes the “shut- down price” in a long-run setting. Use this “shut-down price” to describe the firm’s long-run supply curve. d) Evaluate the long-run supply curve at ? = 10, ? = 4, and ? = 2.

e) Short-run supply curve. Use your results from part (a) to find the average variable cost function. Find the minimum of the ???(?) curve, which constitutes the “shut- down price” in a short -run setting. Use this “shut-down price” to describe the firm’s short-run supply curve.

f) Evaluate the short-run supply curve at ? = 10, ? = 4, and ? = 2

Brad and Sam take a 30-year mortgage for a house that costs $169,675. Assume the following:

• The annual interest rate on the mortgage is 4.4%.
• The bank requires a minimum down payment of 18% of the cost of the house.
• The annual property tax is 1.4% of the cost of the house.
• The annual homeowner's insurance is $979.
• There is no PMI.

If they make the minimum down payment, what will their monthly PITI be?

Round your answer to the nearest dollar.

Suppose you take a 15-year mortgage for a house that costs $269,848. Assume the following:

• The annual interest rate on the mortgage is 4.2%.
• The bank requires a minimum down payment of 10% of the cost of the house.
• The annual property tax is 1.4% of the cost of the house.
• The annual homeowner's insurance is $889.
• The monthly PMI is $83.

If you make the minimum down payment, what is the minimum gross monthly salary you must earn in order to satisfy the 28% rule?

Round your answer to the nearest dollar.

Suppose data were collected on the number of customers that frequented a grocery stores on randomly selected days before and after the governor of the state declared a lock down due to COVID 19. A sample of 6 days before the lockdown were chosen as well as 6 days randomly chosen after the lock down was in place. The number of shoppers each day were as follows:

This is interval/ratio data because they are characteristics of the days.

1. Can these results be generalized? To whom?
2. Can cause and effect statements be made? Explain.
3. Calculate accountable, unaccountable, and total variation. Show your work.
4. Eta square is accountable variation divided by total variation. Determine eta square. It is interpreted as the variation in the dependent variable that can be accounted for by the independent variable. Describe eta square in terms of this problem.

True/False: Because hot water cools down faster than cold water, an ice cube tray filled with hot water will freeze faster than an ice cube tray filled with cold water. Explain your choice.

Hint: Although hot water cools down at a faster rate than cold water, it also has to undergo a larger temperature change. As it cools down, what happens to the rate at which it continues to cool down?

Explain how a mercury thermometer works. A mercury thermometer breaks open and loses its mercury while the thermometer is at a temperature of 20°C. You refill the thermometer with colored ethanol to a level of 20°C. a. At a temperature of 10°C, will the thermometer read a value below, above, or exactly 10°C? Explain. b. At a temperature of 30°C, will the thermometer read a value below, above, or exactly 30°C? Explain.