Answer:
-2x² + 4x + 2
Step-by-step explanation:
(1-8x²+3x)+(1+6x²+x)
= 1 - 8x² + 3x + 1 + 6x² + x
= -2x² + 4x + 2 [-2(x² - 2 - 1)]
Since you already know the radius multiply it by itself(20*20=400)then multiply that amount by 3.14.(formula: 3.14*(radius*radius)
Answer:
1 2/3
Step-by-step explanation:
x-5x+5=2x-3x
-4x+5= -1x
5=3x
5/3=x
1 2/3=x
Answer:
There would be 12
Step-by-step explanation:
The perimeter is the sum of all sides' lengths
So the perimeter = 4*160 m =640 m = 0.64 km
