hiroko is trying to find the value of d in 10d + 490 =2,500. He starts by correctly rewriting the equation as 10(d + 49) = 10 (250). How coukd this help Hiroko figure out the value of d.

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.

1.based of the diagrams what is the the value of x? 2.how would you verify your answer for x

Mr. t has been dating his girlfriend for one year nine months and six days how many hours has mr. t been in a relationship