Which equation is the equation of the least squares regression line that most closely matches the data set? x y
1990 45
1992 51
1994 57
1996 61
1998 75

yˆ=5.5x+52
yˆ=3.5x−6921.2
yˆ=0.17x−13.2
yˆ=−2.2x+13.8

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

Guys i really need or i have to stay late up night

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)