Using BODMAS Determine the value of the given expression if x = 1.- (5x²-x [6x² + 2x - (3x² − 1) + 10x] - 5)-

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Answered: Determine the value of the given…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Content Do Homework - Homework 15.6 X → X A mylab.pearson.com/Student/PlayerHomework.aspx?homeworkld= 2022SP Coreq BASM-0053-52401 & DMAT-0305-52401 = Homework: Homework 15.6 Divide and simplify. 4n6 – 28n5 + 16n² 4n4 4n6 -28n5+ 16n2 n4 - 7n° +4 (Simplify your answer.) - 4n4
*MUST SHOW WORK* A researcher designed a study to find out the effectiveness of two teaching methods: lecture-style vs. discussion-style. He compares the test scores of the students taught with these two different methods. The scores on the test range from 0 to 41 with higher scores indicating better performance. The test results are provided in the table below: Group Methods n M SS 1 lecture-style 15 24 336 2 discussion-style 15 28 392 a. Do students taught with the discussion style perform better than those taught with the lecture style? Use the .05 significance level for the one-tailed test. Show the four steps of hypothesis testing, and describe the hypotheses and conclusion in words as well as notations b. Compute (show calculation steps) and interpret r2
Q3 A researcher wish to compare four manufacturing methods on the breaking strength of plastic. Four types of machines are used in this experiment. He believed that machines have an effect on the plastics breaking strength. However, each machine can operate only three methods during the experiments on a given day. Table Q3 shows the data of the experiment. Table Q3: Four manufacturing methods on the breaking strength of plastic Manufacturing Methods Machine 2 1 A=73 C=73 D=75 2 A=74 B=75 C=75 3 B=67 C=68 D=72 4 A=71 В-72 D=75 What is the name of the design? Write an appropriate statistical model then list the assumptions and identify the terms. (a) (b) Is this design symmetric ? Justify your answer. State if the design balance or not. Discuss how to achieve balance in this design ? Justify your answer. (c) (d) Test the hypothesis at a = 0.05 whether there is an effect of the four manufacturing methods on the breaking strength of plastics.
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UNIVERSITY OF BOTSWANA FACULTY OF SCIENCE DEPARTMENT OF MATHEMATICS MAT271 INTRODUCTION TO MATHEMATICAL STATISTICS TUTORIAL EXECISES 1 PART I. COUNTING PRINCIPLES I (1) A president and a treasurer are to be chosen from a student club consisting of 50 people. How many different choices of officers are possible if (a) there are no restrictions; (b) A will serve only if he is president; (c) B and C will serve together or not at all; (d) D and E will not serve together? (2) Four married couples have bought 8 scats in the same row for a concert. In how many different ways can they be seated (a) With no restrictions? (b) If each couple is to sit together? (c) If all the men sit together to the right of all the women? (3) You are going on a road trip with 4 friends in a car that fits 5 people. How many different ways can everyone sit if you have to drive the whole way? (4) In how many ways can 4 boys and 5 girls sit in a row if the boys and girls must alternate? (5) In how many ways can 5…
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escription nstructions Aultiple Attempts This test allows multiple attempts. Section 6.2 Force Completion This test can be saved and resumed later. Your answers are saved automatically. - Question Completion Status: QUESTION 1 In a survey of 380 households regarding the ownership of VCRS and DVD players, the following data was obtained: 350 households own one or more VCRS. 180 households own one or more VCRS and one or more DVD players. 13 households do not own a VCR or a DVD player. How many households only own one or more DVD players? O a. 16 households O b.29 households Oc. 30 households O d. 20 households O e. 19 households Of 17 households QUESTION 2 On a certain day, the Wilton County Jail had 184 prisoners. Of these, 128 were accused of felonies, and 117 were accused of misdemea Chck Save and Submit to save and submir. Click Sare All Answers to save all ansuers. earch
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Sex (1=Male 2=Female) 1 2 Total Ever told heart disease (1=Yes 2=No) 1 Count 73 96 169 % within Ever told heart 43.2% 56.8% 100.0% disease (1=Yes 2=No) % within Sex (1=Male 10.2% 9.3% 9.7% 2=Female) % of Total 4.2% 5.5% 9.7% 2 Count 640 941 1581 % within Ever told heart 40.5% 59.5% 100.0% disease (1=Yes 2=No) % within Sex (1=Male 89.8% 90.7% 90.3% 2=Female) % of Total 36.6% 53.8% 90.3% Total Count 713 1037 1750 % within Ever told heart disease (1=Yes 2=No) 40.7% 59.3% 100.0% % within Sex (1=Male 100.0% 100.0% 100.0% 2=Female) % of Total 40.7% 59.3% 100.0% What percent of the sample is male and has heart disease? 4.2% 40.5% 43.2% 10.2%
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Determine the value of the given expression if x = 1. - (5x² − x [6x² + 2x - (3x² − 1) + 10x] - 5) - -