Question 5. Let ~ be the equivalence relation defined on Z by x~ y 3 divides (xy) For each x ЄZ, let [x] be the ~-equivalence class which contains x; and let Z/ ~ be the set of ~-equivalence classes. 1 2 361 PRACTICE FIRST MIDTERM QUESTIONS 2024 (i) Prove that the multiplication operation on Z/ ~ given by is well-defined. x-y=xy (ii) Determine whether the exponentiation operation on Z/ is well-defined. [x][y] = [x] ~ given by

How do I create a boxplot by hand for two restaurant employees' payroll. R1 has 10 employees w/salaries of 110,120,123,130,131,136,140,144,150,160 R2 has 11 emp 110,107,110,115,117,120,129,130,132,146,360 R1 has (I think) min-110, Q1-123, median-133.5, Q3-144, max-160 not sure if I calculated Q1 & Q3 correctly R2 min100, Q1-110, median-120, Q3-132, max-360? I'm not sure what to do after that

Savvas Realize asrealize.com/community/classes/8ecb72e211684c87b3b38008b31deeaa/assignments/393ada770eb3471a9c7671bbb1bc231f/content/a26769d6 ent Part A The fee for charging an electric car at Station A is $2 to start and $4 for each hour or fraction of an hour. Which point is NOT included in the graph of this step function? O A (2.5, 14) O B. (2, 10) O C. (0, 0) O D. (1, 6) Part B The fee for charging an electric car at Station B for x hours is modeled by the function shown. 4x, if z -> @ %23 24 & 3 4 8. 9.

B W7: MyStatLab Homework - MAT X + A upperiowa.brightspace.com/d21/le/content/103055/viewContent/1307460/View O Facebook B college classes V paper checker O Mavin - BA-222 Book w User Center C Chegg Federal taxation 1 Bills b My Questions | bart... E Reading list MATH-220-1A-77 (1) Raynn Wells 2 | 10/16/21 9:24 PM The maximum weights (in kilograms) for which one repetition of a half-squat can be performed and the jump heights (in centimeters) for 12 international soccer players are given in the accompanying table. The correlation coefficient, rounded to three decimal places, is r= 0.770. At a = 0.05, is there enough evidence to conclude that there is a significant linear correlation between the variables? E Click the icon to view the soccer player data. Maximum Weights and Jump Heights Determine the null and alternative hypotheses. weight, x height, y 190 59 Ho: p = 185 57 Ha: p + 0 155 53 180 60 Determine the critical value(s). 175 56 to =0 (Round to three decimal places as needed.…