Cho phương trình x²-8x+m=0.Tìm các giá trị của m để phương trình có 2 nghiệm x1 x2 thoã trong các công thức sau A x1²+x2²=50
B x1=7x2
C 2x1+3x2=26
D x1-x2=2

Benito is selecting samples of five values from the table, which row will result in the greatest mean? population data row 1 4 2 2 3 3 row 2 3 3 4 3 2 row 3 2 4 3 4 3 row 4 3 4 4 7 3 row 1 row 2 r

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

Which expression gives you the distance between the points (5,1)and(9,-6)