Either the mean or median; both are four
2a² + ab + 2b + 4a² - 3ab + 9
combine like terms:
2a² + 4a² + ab - 3ab + 2b + 9
6a² - 2ab + 2b + 9
Answer:
equilateral triangle 3 3 perpendicular bisectors of the sides
regular heptagon 7 7 perpendicular bisectors of the sides
regular octagon 8 4 (perpendicular bisectors and 4 lines joining pairs of opposite vertices)
Step-by-step explanation:I got you
Between the 4 and the 7 is it a multiplication or an X?
If the multiplication sign, this is the solution
