Answer: (3a+b)⋅(9a 2
−3ab+b2 )
Step-by-step explanation:
I believe its -1 because x2-x1/y2-y1 good luck
560+ 147= 707
14(40)= 560
14+ 14(1/2)=21
21(7)= 147
All we have to do is divide the distance of the old sidewalk by 3.14:
65 / 3.14 ≈ 20.7006
That means that, rounded to the nearest meter, the new sidewalk is:
21 meters long!