Find the perimeter of the hexagon with vertices A(-10, -4), B(-5, -2), C(0, -4), D(-1, -7),
E(-5, -9), and F(-7, -9). Do not round before calculating the perimeter. After
calculating the perimeter, round to the nearest tenth.
The perimeter is
units.

What is the equation of the graph below? y=sec(x)-4

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

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.