Answer:
(a+b)^2+(a-b)^2=2(a^2+b^2)
expanding:
a² + 2ab + b² + a² -2ab + b² = 2a² + 2b²
2a² + 2b² = 2a² + 2b²
Answer:
x=8/47
Step-by-step explanation:
8x(40+7)=8+(8*7)
8x(47)=8+56
376x=64
x=64/376
x=8/47
Answer:
21.8
Step-by-step explanation:
1.9 + 9 = 10.9
10.9 x 2 = 21.8
(6/5.55) * 100 = 108.11 %
The percent error is 108.11 %
