Pressed against the side of a building the ladder is 13 ft long and forms an angle of 70.5 degrees with the ground. how far is the base of the ladder from the base of the building?

What is the midpoint of the segment below? (-4,-7) (5,6)

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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.