Help Please Use the discriminant to determine if the following quadratic equations have
complex or real solution(s). If an equation has real solution(s), determine the
solution(s).

Part A: 4x^2- 3x – 10 = 0

Part B:x^2– 14x + 49 = 0

Part C: g(x) = x^2– 8x – 20

Part D: h(x) = x^2 - 9x + 36

Part E: 3(x + 2)^2 + 26 = 0

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.