Martin won first place in the 100-meter dash with a time of LaTeX: 14\frac{23}{100}14 23 100 seconds. Samuel came in second place with a time of LaTeX: 15\frac{7}{10}15 7 10 seconds. Select True or False for each statement. A common denominator of the mixed numbers is 100. [ Select ] To find the difference between the runners’ times, Samuel’s time needs to be rewritten. [ Select ] Samuel’s time written with a denominator of 100 is LaTeX: 15\frac{70}{100}15 70 100 [ Select ] Martin beat Samuel by

Find the solution of system of equation y= x-4 y=4x+2

What is 20+(5 x 2/5 )+ 3 show your work

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.