Mr. Gershwin is trying to find the right size grand piano to fit into his Room. The size of the room in his apartment is represented by a rectangle whose sides are described by the expressions 4x – 4 and 8x – 8. Introduction I believe the aim of the investigation was to find a perfect sized piano for Mr. Gershwin’s apartment. Mathematical Investigations 1. Mr Gershwin wants to buy a rectangular piano which is half the width and length of the room. Find the expressions for the length of each
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LINEAR REGRESSION MODELS W4315 HOMEWORK 2 ANSWERS February 15‚ 2010 Instructor: Frank Wood 1. (20 points) In the file ”problem1.txt”(accessible on professor’s website)‚ there are 500 pairs of data‚ where the first column is X and the second column is Y. The regression model is Y = β0 + β1 X + a. Draw 20 pairs of data randomly from this population of size 500. Use MATLAB to run a regression model specified as above and keep record of the estimations of both β0 and β1 . Do this 200 times. Thus you
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Hold up Scenarios Scenario 1 Scenario 1) Player ’A’ grabs Player ’B’s shoulder and places a knife in his midsection in an attempt to rob him. Player ’B’ hollows out his midsection while simultaneously bringing his hands straight up and catching his weapons hand in the web of both hands and shifting to his right. From here ’B’ will quickly apply a wrist flex. Most people teach it the way shown here using both thumbs‚ but that is not the best way to apply this technique.......... If
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I. Objectives: • To verify Newton’s Second Law of Motion with the use of state-of-the-art devices II. Materials and Equipment: • 2.2 m Track- 1 pc • Plunger Cart- 1pc • Super pulley with clamp – 1pc • .500gram mass- 1pc • Stopwatch1- 1pc • Block ( to act as bumper)- 1pc • Beam Balance- 1 unit • String – 2m long • Set of Weights-1 set III. Data and Results Cart Mass Hanging Mass Trial1 Trial2 Trial3 Trial4 Trial5 Average Time 512g 13g 2.16s 2.15s 2.06s 2.0s 2.1s 2.09s 1016.5 27g
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INTRODUCTION My topic is oil refinering using linear programming‚ this is under petrochemical industries which mean it will deal more about chemicals‚ this is about optimising the cost using a modelling method in mathematics called linear programming. This is very important because it links what is done in petrochemical industries with mathematics. Since there is a huge need of the products that are produced after petroleum refinering which are petrol‚ gasoline‚ oil‚ diesel and etc so in the
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Taylor Gray 1/31/11 POW 6: linear nim For this game of Linear Nim you draw 10 line marks on a piece of paper and two players take turns crossing off only 1‚ 2‚ or 3 marks per turn. The person who crosses off the last mark is the winner. Firstly what I did was play a few games with my Mom and what I realized right away was that if you stopped just before the last four dashes in the game then you would always win. Since you aren’t always guaranteed of being the one who can put these dashes
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and specifically Algebra‚ is used every day in people’s lives. Explain why you agree or disagree with that statement and provide examples to justify your stance. Include a useful example with numbers to support your claims. Yes‚ I do agree we use math and sometimes algebra everyday. For example‚ math which we use for the grocery store‚ shopping‚ paying bills‚ purchasing items and taxes. As a matter of fact whenever you have to buy‚ sell‚ or trade you’re using math or algebra in some kind of way
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[pic] Grade 8 Algebra Sample Questions and Answers [pic] This booklet contains sample items from the National Assessment of Educational Progress (NAEP). Additional items can be accessed at www.nces.ed.gov/nationsreportcard/itmrls. SOURCE: U.S. Department of Education‚ Institute of Education Sciences‚ National Center for Education Statistics (NCES)‚ National Assessment of Educational Progress (NAEP) NAEP Grade 8 Algebra Contents Introduction 3 Question 1 –
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Introduction to Linear Regression and Correlation Analysis Goals After this‚ you should be able to: • • • • • Calculate and interpret the simple correlation between two variables Determine whether the correlation is significant Calculate and interpret the simple linear regression equation for a set of data Understand the assumptions behind regression analysis Determine whether a regression model is significant Goals (continued) After this‚ you should be able to: • Calculate and
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cheddar cheese and 3 lbs of chicken loaf. He paid $26.35. Mrs. Hsing paid $18.35 for 1.5 lbs of cheese and 2 lbs of chicken loaf. What was the price per pound of each item? $4.70 per lb of cheese‚ $5.65 per lb of chicken loaf Prentice Hall Algebra 2 • Extra Practice Copyright © by Pearson Education‚ Inc.‚ or its affiliates. All Rights Reserved. 9 Name Class Date Extra Practice (continued) Chapter 3 Lesson 3-2 Solve each system of equations. 12. e x 1 y 5 25 x 2 y 5
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