Which r-value is the best estimate of the correlation coefficient for the variables in the scatter plot?

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)

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Can you me find the missing length. i attached an image.