In a study of towns, there was a positive correlation between the number of mail boxes and number of traffic lights in a town.

which variable is most likely the lurking variable that explains the correlation?

ages of residents

commute times

population

highest temperatures

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11