The area of a triangle is 195 square centimeters. the length of the base is 26 centimeters. what is the height of the triangle? 7.5 centimeters 15 centimeters 52 centimeters 84.5 centimeters

What expression is equivalent to 42x-56y

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.

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2