Answer:False
Step-by-step explanation:
the nucleus is surrounded by electrons
The answer is A.
(-2)^2 = 2^2 = 4
As the negative shrinks, the square increases.
As the positive rises, the square increases.
Answer:
( x+1)^2 = 4
Step-by-step explanation:
x^2+2x-3=0
Add 3 to each side
x^2 +2x = 3
Take the coefficient of x
2
Divide by 2
2/2 =1
Square it
1^2 =1
Add to each side
x^2 +2x = 3
x^2 + 2x+1 = 3+1
( x+1)^2 = 4
Take the square root of each side
x+1 = ±2
Subtract 1 from each side
x+1-1 = -1 ±2
x = -1+2 x = -1-2
x =1 x = -3
A: 100 cm³
This is because the others can be multiplied by something 3 times to get it, but A can not.
The library would have 90 non-fiction books.