from the question, (-2,2) and (1,2) have the same y value so you can use that as your base and easily find the perpendicular height using the y axis since it's parallel to the x axis.
the third point, (0,-6), to the base is your height
use the sum of the positive of the y values to find your height (because height can't be negative): 6+2 = 8
area of a triangle = 1/2 bh = 1/2 x 3 x 8 = 12
Note: 1/2 bh only works because (-2,2) and (1,2) form a line parallel to the x axis
Step-by-step explanation:
450 - 396 = 54
(54/450) * 100% = 12%
Hence the decrease is 12%.
Answer:

Step-by-step explanation:
Answer:
Estimation is finding a number that is close enough to the right answer. ... 550 + 248: 50+48 is nearly 100 so an estimate is 500+200 +100 = 800.
Answer:
The dimensions of the box is 2 units.
Step-by-step explanation:
Volume of cube, V = 8 cubic units
Let the length of the side is a.
So,
The volume of the cube is

So, the dimensions of the box is 2 units.