A baby elephant weighs 200 pounds at birth. Seven years later, the elephants’s weight is 3,000 pounds. What is the rate of change of the weight of the elephant? A) 400 pounds per year
B) 429 pounds per year
C) 457 pounds per year
D) 466 pounds per year

What statement is true? 2x^2-9x+2=-1

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.

Joanie watched 1 out of three of a movie in the morning