Could someone show me how I could create a linear regression model without any intercepts using Matrix operations. The following points are: (x1, x2, y): (2, 3, 15), (4, 5, 23), (1, 2, 8), and (3, 5, 21).

unit sales will be 10,000 in quarter 1; 12,000 in quarter 2; 14,000 in quarter 3; and 18,000 in quarter 4. Management desires to have an ending finished goods inventory equal to 10% of the next quarter's expected unit sales. What is budgeted production in units for quarter 2?

Consider a project with the following cash flows:

Year 0: -$1160
Year 1: $80
Year 2: -$270
Year 3: $580
Year 4: $2290

What is the MIRR of the project if the WACC is 13% and the financing costs are 2% ?

Group of answer choices

22.23%

21.18%

23.27%

2. In a balanced Y-Y four-wire connection system, the source is an abc sequence of voltage and ??? = 100∠0 0 . The load impedance per phase is 4 + ?7 Ω , and the line impedance per phase is 2+?1 Ω. Solve for the Line Current and Neutral Current.

Company X produces an end product Afor the market. One unit of Ais made by assembling 1 unit of K, 2 units of L, and 1 unit of M. One unit of K is made of 2 units of G and 3 units of H; one unit of L is assembled using 1 unit of M and 2 units of N. Current on-hand inventories for L and M are 130 and 60, respectively. Scheduled receipts are 300 for L at the beginning of week 1 and 150 for M at the beginning of week 2.
Lead times for K and L are one week, and lead times for other components are two weeks. The final assembly time for A is one week.
1. Fill in Table 1 to prepare a master production schedule for end product Ausing a fixed lot size of 200. The beginning inventory for A is 180; the forecast and committed customer orders
for A are provided in this table.

Table 1: MPS table for end product A in Question 1

b. Construct the product structure tree (i.e., the BOM chart) for A.

c. Use your master production schedule in Table 1 to develop a material requirement plan (MRP) for the subassembly L using the lot-for-lot policy.

Thanks very much

The production of ethyl acetate occurs in a batch reactor with two raw materials, ethanol and acetic acid, as shown with the following reaction: ??2??5???? + ????3???????? ? ????3????????2??5 + ??2??

The reaction may be written simply in the form of: ?? + ?? ? ?? + ??

The reaction rate in the liquid phase is given by: ???? = ??1???????? At 100°C: ??1 = 7.93 × 10?6 m3kmol?1 s ?1

A feed of 38.4% by weight of acid, 50% by weight of alcohol, and no ester is used to promote a 35% conversion of the acid. The density of the mixture can be assumed to remain constant at 1020 kg m?3 . The daily production rate for the production of ethyl acetate is 50 metric tonnes and the reactor will be operated 24 hours a day with the time for filling, emptying, cleaning is 1 hour total for each batch.

Determine the following:

a) Initial and final concentration of each species (don’t forget about the water) [6 marks]

b) Batch reaction time [6 marks]

c) Number of batches per day [4 marks]

d) Reactor volume for required daily production [4 marks]

DATA:

Molecular Weight of Component

A 46 kg kmol?1

B 60 kg kmol?1

R 88 kg kmol?1

S 18 kg kmol?1

Let's assume that SAP Corporation, a leader in the business applications software industry, is interested in developing a new application package for inventory management and shipping control. It is trying to decide which project to select from a set of three potential alternatives.

Based on past commercial experiences, the company feels that the most important selection criteria for its choice are: net present value, payback period, return on investment, and internal rate of return. Each criterion is ranked according to its relative importance. Our choice of projects will thus reflect our desire to maximize the impact of certain criteria on our decision. We assign a specific weight to each of our four criteria:

In addition to developing the decision criteria, we create evaluative descriptors that reflect how well the project alternatives correspond to our key selection criteria. We evaluate each criterion (which is scored high, medium, or low) according to the following Table:

1.      For each alternative, calculate the net present value, the payback period, the return on investment, and the internal rate of return using a discount rate of 8 percent.

2.      Which project alternative is the best? Why?

Please send your answer in Excel sheet

QUESTION 9

1. A 1,000-turn coil has a cross section of 7.0 cm ^ 2 and a length of 25 cm. Determine how much energy is stored in the coil's magnetic field when it has a current of 10.0 A.

a. 0.18 J

b. 0.36 J

c. 0.10 J

d. 28 J

e. 2.8 J

QUESTION 10

1. Determine which of the following types of waves is intrinsically different from the other four.

a. ultraviolet radiation

b. gamma rays

c. radio waves

d. visible light

e. sound waves

QUESTION 11

1. A circular copper cable is located perpendicular to a uniform magnetic field of 0.50 T. Due to external forces the cable area decreases at a ratio of 1.26 x 10 ^ -3 m ^ 2 / s. Determine the "emf" induced in the circular cable.

a. 7.9 x 10 ^ -3 V

b. 3.1 V

c. 1.2 x 10 ^ -3 V

d. 6.3 x 10 ^ -4 V

e. 3.1 x 10 ^ -4 V

QUESTION 12

1. A cable consists of 240 circular turns, each radius 0.044 m, and the current is 2.2 A. Determine the magnetic moment of the cable.

a. 23 Am ^ 2

b. 0.65 Am ^ 2

c. 15 am ^ 2

d. 0.21 Am ^ 2

e. 3.2 Am ^ 2

please write simple python3 program and also explain the logic of program because i am not understanding and crying so much

Problem Statement

There is a very famous old restaurant in ByteLand city,which can serve only 1 customer at any given time.It has B chairs outside for waiting customers.The restautants manager has a list of people who will be coming in today.The i-th customer will arrive at t[i] (all unique) time and will eat for d[i] unit of time.The restaurant attends to each customer as per the following rules:

1) if there is no customer being served currently,a new customer will be served immediately

2) if one customer is being served and there is at least one empty chair in the waiting area,a new customer will go and occupy one empty chair.

3)if the waiting area is full,a new customer will be rejected and will never be served .

4)Waiting area works like a queue and the first to enter will be served first.

Based on the list,the restaurant manager wants to know:

1.How many customers will be rejected today so that she can plan the food quantity accordingly and also 2 .v by what time will she finish serving the last customer.

Input format:

The first line of the input contains two integers N and B(1<=N,B<=100,000)-- The number of customers and the number of chairs in the waiting area.

Then follow N lines with queries descriptions (in chronological order ). Each description consists of two integers t[i] and d[i] ( 1 <= t[i] , d[i]<= 10^9 ) , where t[i] is the moment of time when the i-th customer appears and d[i] is the time customer needs for eating. it is gauranteed that t[i-1] < t[i] for all i >1

Output Format:

Print one integer corresponding to the number of customers who will be rejected and time when the last customer will be finish her meal.

Sample Input1:

5 1

2 9

4 8

10 9

15 2

19 1

Sample Output1

1 22

Explanation

1st customer comes at moment 2,no one is being served hence she will be served immediately.

2nd customer comes at moment 4 , 1rst one is still being served hence she will go and take chair in waiting area

3rd customer comes at moment 10 1rst one is still being served and no chair is empty in waiting area.Hence she will be rejected.

1st customer finishes at moment 11, 2nd customer will come from waiting area to get served and waiting area becomes empty.

4th customer comes at moment 15,2nd customer is being served hence she will move to waiting area.

2nd customer finishes at moment 19, 4th customer will move from waiting area to get served and waiting area becomes empty.

5th customer comes at moment 19,4th customer is being served hence she will move to waiting area

4th customer finishes at moment 21 , 5th customer will move from waiting area to get served and waiting area becomes empty.

5th customer finishes at moment 22

Sample input2

5 1

2 1

3 6

4 5

6 4

7 2

Sample putput 2:

2 14