If you were rounding the exact answer 'could' be 499,999 or it 'could' be 455,555. But it would be difficult to know the definitive amount, so basically anything above 450,000.
x^{2} +y^{2} =25 centered at the origin and has a radius of 5.
You have the following equation:
|n| = 8 the two vertical bras | | means absolute value of variable n
when you have an equation with an absolute value you consider that n could be negative or positive, because the absolute value of a number always results in a positive number. Then, n can be 8 or -8, because |-8| = |8| = 8. Hence, you have
n = ±8
