Solve the following equation using any method: - 2x^2 - 4x = 6.
Answer choices:
A. x=-1+square root 2i
B. x=-3 or x=1
C. x=+ square root 2i
D. x=1+ square root 2i

Which expression shows the sum of the polynomials with like terms grouped together

What is the slope of the line shown below?

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.