2. Show that the roots of the equation
bx2+(b-c)x=c+a-b are always real if those of
ax2+b(2x + 1) = 0 are imaginary.​

Identify the conclusion of the conditional statement. if you live in phoenix, then you live in arizona.

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.

4+(2+x) can you me solve this problem