The equation: 2x + y = -10 -2x -y = 10

Will the X’s or Y’s eliminate?

A) X’s
B) Y’s
C) Both

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm. dist(80,475,33,1) =norm. inv(0.80,475,33) =norm. s.inv((80-475)/33)?

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Which expression is equivalent to sq-80