Select the exclusion that fits best with this problem.
4x^2-4x+1/8x^3-1
x = 0
x, y, z = 0
1 + y + y2, y = 0, 1 - y = 0
a, b = 0, a2 + ab + b2 = 0
2x - 1 = 0, 4x2 + 2x + 1 = 0

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb