Answer:
Associative property of addition: Changing the grouping of addends does not change the sum. For example, ( 2 + 3 ) + 4 = 2 + ( 3 + 4 ) (2 + 3) + 4 = 2 + (3 + 4) (2+3)+4=2+(3+4)left parenthesis, 2, plus, 3, right parenthesis, plus, 4, equals, 2, plus, left parenthesis, 3, plus, 4, right parenthesis.
Step-by-step explanation:
Its D because 2×2×2 equals 8 and they are both minus and knowing - times - makes + so it becomes 8
60° , 60° , 60°
Answer: B: n^2+6n+1
A=n
B=2n+6
C=n^2-1
AB-C
n(2n+6)-n^2-1
2n^2+6n-n^2+1
n^2+6n+1
The answer is D. 393ft
So if you do 62.5•2=125
Then you do 125•3.14=392.5
After that then you round 392.5 and you get 393
theres your answer.
