Answer:
1) 2m + 3m2 - 4m=7
7) 3m2 – 2m + 4m= 11
8) 20 + 109 + 39 - 4= 164
3) 2m + 4m - 3m2= -3
9) 4xy + x + 2xy= 0
4) 2y + 14x - 7x + 9y= 18
10) 6m2 - 6m - 9m2= -51
Step-by-step explanation:
Answer:
Lenthg times width
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
hope it helpz >-<
Sum of internal angles of any polygon is: (n-2)x180
So measure of an interior edge is ( ( n - 2 ) x 180 ) / n = 140
So 140n = 180n - 360
40n = 360
n = 9
So it's a nonagon.
Hope this helps :)
Since 3 feet = 1 yard, Colin needs 3 cubes on each edge. (See picture below.)
In that picture, you'll also see that there are 9 cubes on one layer and there are three layers.
9x3 = 27
