Hideki found the solution for the equation below to be r = 66. 6(5 + r) = 96 what mistake did hideki make in solving the equation? what is the correct solution? a. he did not distribute 6 to r; r = 11. b. he did not divide both sides by 6; r = 16. c. he did not multiply both sides by 6; r = 571. d. he did not subtract 5 from both sides; r = 15.

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25