What is considered the most famous impossible problem from Greek antiquity?
A. Bisecting any angle
B. The Koch curve
C. The Delian problem
D. Playfair's axiom

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.